HoldsUp

Daniel Amen

Dr. Daniel Amen is a researcher and author working in the field of neuroimaging and psychiatric health. His published research focuses primarily on using brain single-photon emission computed tomography (SPECT) imaging to assess regional cerebral blood flow and neural connectivity. His work investigates functional brain imaging biomarkers across psychiatric and neurological conditions, including major depressive disorder, schizophrenia, ADHD, cognitive disorders, and the effects of adverse childhood experiences.

17 claims checked on air: 2 context 1 contradicted 12 supported 2 unverified

What they said on air

4 citing their own research

0:17:09supportedmoderateRecognize Influences on the Brain - with Dr. Daniel Amen | T

Social isolation is a risk factor for dementia.

"isolation is actually a risk factor for dementia" (said at 0:17:09)

Large-scale systematic reviews, meta-analyses, and umbrella reviews of prospective longitudinal cohort studies confirm that social isolation (along with loneliness and low social engagement) is an established modifiable risk factor for incident dementia, associated with an approximately 1.5-fold increased risk of developing the condition.

0:17:13supportedmoderateRecognize Influences on the Brain - with Dr. Daniel Amen | T

Social isolation is a trigger for depression.

"it's clearly a trigger for depression." (said at 0:17:13)

Extensive epidemiological and longitudinal evidence supports the claim that social isolation (and the related experience of loneliness) is a significant risk factor and precipitating trigger for the onset of depressive symptoms and major depression. A meta-analysis examining social isolation in older adults (PMID: 41578462) identified a 60% increased likelihood of depressive symptoms (pooled OR = 1.60, 95% CI: 1.39–1.84). Similarly, a systematic review and meta-analysis of prospective cohort studies (PMID: 35583561) evaluating the new onset of mental health disorders found that baseline social disconnection/loneliness more than doubled the adjusted risk of subsequent incident depression (pooled adjusted OR = 2.33, 95% CI: 1.62–3.34).

0:21:56supportedmoderateRecognize Influences on the Brain - with Dr. Daniel Amen | T

A breathing pattern of 3-4 seconds inhalation and 6-8 seconds exhalation triggers a parasympathetic nervous system response.

"we had worked on this very specific breathing pattern. It's been found to trigger a parasympathetic response, which is basically three or four seconds in, so take a deep breath, and then six to eight seconds out." (said at 0:21:56)

Paced slow breathing with prolonged exhalation (typically a 1:2 inhalation-to-exhalation ratio, such as 3-4 seconds inhaling and 6-8 seconds exhaling, corresponding to roughly 6 breaths per minute) is well-documented to enhance vagally mediated heart rate variability (HRV) and activate parasympathetic nervous system activity. Experimental studies and randomized trials demonstrate that prolonging the exhalation phase relative to inhalation increases high-frequency heart rate variability (HF-HRV) and the root mean square of successive differences (RMSSD), established physiological markers of cardiac vagal tone.

0:24:15supportedlowtheir own paperRecognize Influences on the Brain - with Dr. Daniel Amen | T

Dr. Amen scanned and evaluated 300 NFL players in a study starting in 2009 and found high levels of brain damage.

"I did the big NFL study starting in 2009. We scanned and treated 300 NFL players: high levels of damage." (said at 0:24:15)

Dr. Amen and colleagues initiated an ongoing longitudinal study in 2009 evaluating active and retired NFL players using SPECT perfusion neuroimaging and clinical evaluations. Published findings from this cohort reported significant hypoperfusion across 36 brain regions consistent with traumatic brain injury in 161 NFL players compared to 124 healthy controls, and a pilot open-label intervention study evaluated and treated 30 players. The certainty is low due to observational and open-label study designs.

0:29:10supportedhighRecognize Influences on the Brain - with Dr. Daniel Amen | T

Dr. David Smith founded the Haight Ashbury Free Clinic.

"David Smith, who's founder of the Haight Ashbury Free Clinic and really thought of as the father of addiction medicine in the United States" (said at 0:29:10)

Historical records and scholarly literature document that Dr. David E. Smith founded the Haight Ashbury Free Medical Clinic (HAFMC) in San Francisco in 1967. The clinic was established during the counterculture movement to provide free, nonjudgmental healthcare and addiction treatment to underserved populations, cementing Smith's role as a pioneer in the development of modern addiction medicine.

0:29:45supportedmoderateRecognize Influences on the Brain - with Dr. Daniel Amen | T

Brain damage from head trauma increases the risk of addictive behavior and loss of behavioral control.

"You damage your brain, you're more likely to have behavior that gets out of control." (said at 0:29:45)

Traumatic brain injury (TBI) is well-documented in clinical neurotrauma and psychiatric literature to elevate the risk of behavioral dyscontrol, impulsivity, disinhibition, aggression, and addictive behaviors (such as substance use disorders and problem gambling). Systematic reviews and meta-analyses estimate that substantial proportions of TBI patients develop post-injury personality changes characterized by poor impulse control, emotional lability, and behavioral disinhibition.

0:30:00supportedmoderateRecognize Influences on the Brain - with Dr. Daniel Amen | T

Frequent massive dopamine surges lead to desensitization in the nucleus accumbens, requiring higher stimulation to experience pleasure.

"dopamine is really important and it presses on the nucleus accumbens, but if you dump it, it presses too hard, just like fame. So think of Miley or Justin. They get all of this dopamine, well, it wears it out, and then they need more and more in order to feel anything at all." (said at 0:30:00)

Extensive neuroimaging and preclinical research supports the concept that repeated, supraphysiological dopamine release in the reward circuitry (including the nucleus accumbens) leads to neuroadaptive down-regulation. Human positron emission tomography (PET) studies demonstrate that chronic excessive stimulation blunts striatal dopamine release and decreases dopamine D2 receptor availability in the nucleus accumbens and dorsal striatum. These neuroadaptations reduce baseline sensitivity to everyday rewards and require increasingly potent stimuli to achieve equivalent dopamine signaling and subjective reward.

0:30:27supportedhighRecognize Influences on the Brain - with Dr. Daniel Amen | T

Dopamine acts directly on the nucleus accumbens in the brain.

"So dopamine is really important and it presses on the nucleus accumbens, but if you dump it, it presses too hard, just like fame." (said at 0:30:27)

The mesolimbic dopaminergic pathway is a well-established neural circuit in which dopamine-producing neurons projecting from the ventral tegmental area directly innervate the nucleus accumbens. Dopamine released into the nucleus accumbens binds to local dopamine receptors (such as D1 and D2 receptors) to regulate intracellular signaling, synaptic plasticity, reward processing, and motivated behavior.

0:50:20unverifiedvery lowRecognize Influences on the Brain - with Dr. Daniel Amen | T

Tom Brady gets nine hours of sleep per night and avoids gluten, dairy, corn, soy, artificial dyes, sweeteners, and sugar.

"Gets nine hours of sleep, he doesn't eat gluten, dairy, corn, soy, artificial dyes, sweeteners, sugar. I mean, his diet is really clean" (said at 0:50:20)

No published record matching the specific daily sleep duration and dietary exclusions of Tom Brady was located in the scientific literature; this does not prove the claim false. While the described nutritional rules align broadly with public descriptions of the commercial "TB12 Method" lifestyle program, individual lifestyle regimens of specific athletes are not documented or evaluated in peer-reviewed biomedical research.

0:55:35supportedhighRecognize Influences on the Brain - with Dr. Daniel Amen | T

Chronically high blood sugar damages blood vessels, causing them to lose flexibility and become brittle and prone to breaking.

"Which is an emergency, because when your blood sugar is chronically high, it erodes your blood vessels, making them more likely to lose their flexibility, be brittle, and more likely to break." (said at 0:55:35)

Published literature confirms that chronic hyperglycemia drives vascular damage through multiple well-characterized pathways, including endothelial dysfunction, oxidative stress, advanced glycation end-product (AGE) cross-linking of extracellular matrix proteins, and vascular smooth muscle calcification. These pathophysiological alterations directly result in loss of arterial compliance (increased arterial stiffness) and structural vessel wall fragility, which predisposes to microvascular and macrovascular injury.

0:56:00contradictedmoderateRecognize Influences on the Brain - with Dr. Daniel Amen | T

Low blood flow is the number one brain imaging predictor of Alzheimer's disease.

"Blood flow—low blood flow is the number one brain imaging predictor of Alzheimer's disease." (said at 0:56:00)

Low cerebral blood flow (hypoperfusion, typically assessed via SPECT or arterial spin labeling MRI) is not the leading or "number one" neuroimaging predictor of Alzheimer's disease. In clinical diagnostic frameworks and comparative imaging studies, pathological hallmark imaging (amyloid-beta PET and tau PET), fluorodeoxyglucose (FDG) PET, and structural MRI (such as medial temporal lobe and hippocampal volumetry) are the primary, most accurate imaging biomarkers for Alzheimer's disease. While characteristic patterns of hypoperfusion (particularly in the posterior cingulate and temporoparietal cortices) are observed in Alzheimer's disease and can assist in differential diagnosis or prognostication of mild cognitive impairment, systematic reviews and comparative studies demonstrate that FDG-PET and specific amyloid/tau imaging biomarkers consistently demonstrate higher diagnostic accuracy and predictive power than perfusion imaging.

0:56:10needs contextmoderateRecognize Influences on the Brain - with Dr. Daniel Amen | T

Forty percent of 40-year-old men begin to complain of erectile dysfunction.

"And get this: 40% of men at 40 years old start to complain of erectile dysfunction." (said at 0:56:10)

Data from the landmark Massachusetts Male Aging Study (MMAS) established that approximately 40% of men at age 40 experience some degree of erectile dysfunction (with an overall prevalence of 52% across men aged 40 to 70). However, this figure includes mild or minimal erectile difficulties; severe or complete erectile dysfunction affects only about 5% of men at age 40, increasing with age.

0:59:30needs contextlowtheir own paperRecognize Influences on the Brain - with Dr. Daniel Amen | T

A study by Daniel Amen in the Journal of Alzheimer's Disease found that overweight and obese NFL players had lower blood flow in the prefrontal cortex compared to normal-weight players.

"So I actually did a study—I published a study in the Journal of Alzheimer's Disease in my NFL group, and we looked at NFL players who were overweight or obese versus those who were at a healthy weight. The overweight and obese one had low blood flow in their prefrontal cortex" (said at 0:59:30)

Daniel Amen published a study in the Journal of Alzheimer's Disease (2020) examining regional cerebral blood flow via brain SPECT scans across BMI categories (underweight, normal weight, overweight, obese, morbidly obese). The study showed that higher BMI correlated with reduced cerebral blood flow across virtually all brain regions, including the prefrontal cortex and areas implicated in Alzheimer's disease. However, the speaker conflated this study with his earlier NFL cohort work: the published Journal of Alzheimer's Disease study on obesity and cerebral blood flow was conducted in a general adult psychiatric cohort of 17,721 participants (35,442 scans), not specifically in his NFL player group. As an observational cross-sectional imaging study from a private clinic network, the body of evidence provides low certainty.

1:00:00unverifiedvery lowtheir own paperRecognize Influences on the Brain - with Dr. Daniel Amen | T

Former NFL player Ed White lost 150 pounds participating in Dr. Daniel Amen's NFL weight loss group.

"And we did an NFL weight loss group, which was so much fun for me. I had Big Ed White become Little Ed White. He lost 150 pounds, which was really fun." (said at 1:00:00)

No published record matching the claim that former NFL player Ed White lost 150 pounds in Dr. Daniel Amen's weight loss group was located; this does not prove the claim false. Dr. Amen published a study detailing an open-label multi-component intervention in 30 retired NFL players that included weight loss where appropriate (PMID 21615001), but individual player identities and specific weight loss figures such as 150 pounds were not reported in peer-reviewed publications.

1:00:15supportedhighRecognize Influences on the Brain - with Dr. Daniel Amen | T

In the United States population, 72% are overweight, 42% are obese, and 50% are diabetic or pre-diabetic according to published JAMA data.

"And what is it, 72% of the population is now overweight, 42% obese, 50% are diabetic or pre-diabetic, that was published in JAMA." (said at 1:00:15)

Published nationally representative epidemiological data (primarily from the National Health and Nutrition Examination Survey [NHANES], frequently reported in JAMA and CDC publications) support these figures for US adults. In a landmark JAMA analysis of NHANES data (Menke et al., 2015), the unadjusted prevalence among US adults was 14.3% for total diabetes (diagnosed and undiagnosed) and 38.0% for prediabetes, totaling 52.3% (over 50%) with diabetes or prediabetes. Similarly, NHANES surveillance data show that approximately 71% to 73% of US adults are classified as overweight or obese (BMI ≥25 kg/m²), with adult obesity prevalence (BMI ≥30 kg/m²) reaching approximately 42.4%.

1:00:39supportedhighRecognize Influences on the Brain - with Dr. Daniel Amen | T

Adipose tissue converts testosterone into forms of estrogen.

"If you're overweight, your hormone balance isn't right because fat takes healthy testosterone, turns it into unhealthy forms of estrogen." (said at 1:00:39)

Adipose tissue expresses the enzyme aromatase (CYP19A1), which catalyzes the peripheral conversion of androgens, such as testosterone and androstenedione, into estrogens (primarily 17β-estradiol and estrone). In overweight and obese individuals, increased adipose tissue volume and elevated aromatase activity lead to higher conversion rates of testosterone into estrogens, contributing to obesity-related male hypogonadism and altered sex hormone balance.

1:00:52supportedlowtheir own paperRecognize Influences on the Brain - with Dr. Daniel Amen | T

A published study by Daniel Amen examining 35,000 brain scans found a linear correlation where higher body weight was associated with decreased blood flow across virtually every brain region.

"I published a study last year on 35,000 scans showing there was, David, a linear correlation: as your weight went up, blood flow to virtually every area of your brain went down." (said at 1:00:52)

A 2020 cross-sectional study by Daniel Amen and colleagues analyzed 35,442 brain SPECT scans from 17,721 adults in a psychiatric clinic cohort across different BMI categories. The study reported that higher BMI was significantly correlated with decreased cerebral blood flow (hypoperfusion) during both resting and concentration tasks across virtually all 128 brain regions examined. Because this was a retrospective, cross-sectional observational study in a self-selected clinical population, it demonstrates association rather than direct causation.

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