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Coffee

News

Coffee tracked higher total testosterone but lower free testosterone

A Finnish study of 2,264 people at age 46 found heavier coffee drinkers were leaner and had a distinct hormone pattern in men, with a catch buried in which testosterone rose.

Jul 31, 2026

News

What coffee does to your gut and mood, beyond the caffeine

Irish researchers compared 31 coffee drinkers with 31 non-drinkers, then tracked what changed when people took up caffeinated or decaf coffee. Both shifted the gut microbiome. Decaf was linked to better memory, caffeine to sharper focus.

Jul 22, 2026