HoldsUp

DavidPerlmutterMD · 2026-08-19 · David Perlmutter (host), Emma Heming Willis, Nicole Beurkens

Why Women Should Start Protecting Their Brain Now with Dr. Nicole Beurkens & Emma Heming Willis

18 research-tied claims examined: 2 overstated 3 context 11 supported 2 unverified

2

Overstated

0:27:15David Perlmutter (host)overstatedvery low

Social engagement increases brain production of oxytocin, which binds to microglial cells to keep them supportive rather than destructive.

"When people are socially engaged, they are having higher levels of oxytocin, the love hormone, if you will. The reason I think it's so important is because we now understand that oxytocin binds to the brain's immune cells called microglial cells and helps keep them being supportive and loving versus being destructive." (said at 0:27:15)

Preclinical research in rodents and cell cultures shows that oxytocin can bind to oxytocin receptors (OXTR) on microglia to downregulate pro-inflammatory signaling pathways (such as NF-κB and ERK/STAT3), decrease pro-inflammatory cytokine release, and suppress damaging microglial overactivation. Additionally, social interactions are well established to stimulate endogenous oxytocin release. However, the claim that human social engagement directly modulates microglial phenotype from 'destructive' to 'supportive' is an extrapolation from in vitro and animal disease models (such as ischemic stroke, hypoxia, and sepsis), with no direct human clinical evidence demonstrating this specific pathway in vivo during social interaction.

0:56:09Emma Heming Willisoverstatedlow

Caregivers have a mortality rate that is 63% higher than non-caregivers of the same age.

"caregivers die at a rate that is 63% higher than people their age who are not caregivers." (said at 0:56:09)

The 63% figure comes from the 1999 Caregiver Health Effects Study (Schulz & Beach, JAMA), but it applies specifically to older spousal caregivers (aged 66 to 96) who reported experiencing mental or emotional strain, rather than all caregivers generally. In that study, caregivers who provided care without reporting strain did not have a statistically significant increase in mortality risk compared to noncaregiving controls (RR 1.08; 95% CI, 0.61–1.90).

  • partial: Caregiving as a risk factor for mortality: the Caregiver Health Effects Study. (JAMA 1999) · cited 3378x in the literature
    "After adjusting for sociodemographic factors, prevalent disease, and subclinical cardiovascular disease, participants who were providing care and experiencing caregiver strain had mortality risks that were 63% higher than noncaregiving controls (relative risk [RR], 1.63; 95% confidence interval [CI], 1.00-2.65). Participants who were providing care but not experiencing strain (RR, 1.08; 95 % CI, 0.61-1.90) and those with a disabled spouse who were not providing care (RR, 1.37; 95% CI, 0.73-2.58) did not have elevated adjusted mortality rates relative to the noncaregiving controls." (abstract, results, passage verified)
    pubmedfull study (doi)

Unverified means no publication matching the claim was located; it does not prove the claim false. Spotted an error? See the corrections policy - disputes from the people quoted are prioritized.