Saturday, August 15, 2026 Evidence-led medical research news
The First Cohort
Medical research, with the receipts

wellness

5 stories tagged "wellness"

Infectious Disease

A Sauna Floods Your Blood With Immune Cells. It's a Flush, Not a Boost.

Fifty-one Finns sat in a 73°C sauna for half an hour, and every white blood cell type poured into their blood. Half an hour later the neutrophils and lymphocytes were back to baseline, and the immune system's chemical alarm had barely rung.

Autoimmune & Inflammation

A 30-Minute Sauna Floods the Blood With Immune Cells, and the Heat Isn't What Triggers Them

Finnish researchers put 51 people in a 73-degree sauna and watched every class of white blood cell surge, then found the surge had almost nothing to do with how hot anyone actually got.

Nutrition & Food

Brewed tea has the longevity receipts. The supplement aisle has a liver problem.

A 2025 review finds 1.5 to 2 cups of brewed tea daily correlate with about 10% lower all-cause and 14% lower cardiovascular mortality. The EGCG-extract supplements built on the same chemistry have been linked to over 100 liver-injury cases, while bubble tea can match a Coke for sugar.

Brain & Aging

Utah's Quiet Bet Against the Number-One Killer of New Mothers

Utah is scaling a free, CBT- and mindfulness-based perinatal depression pathway through MyChart in a state where suicide is the leading cause of maternal death.

Drugs & FDA

Europe had this sunscreen in 1999. The FDA approved it Tuesday.

A new chemical UV filter Europe approved in 1999 just cleared the FDA after a 21-year wait, while Americans relied on ingredients the agency's own 2019 review could not call safe.