L-theanine is trending for sleep in 2026 and two major research reviews finally back it up: What to know ...

L-theanine doesn’t push your body toward sleep the way a sedative does. It works by boosting alpha brain waves, the relaxed, ...

L-theanine for sleep: Everything families need to know before trying this natural sleep aid alternative ...

Can't shut your brain off at night? Here's what L-theanine actually does for sleep, per recent research.

Ingredients like black cohosh, L-theanine, and maca root are often included in menopause supplements. Do they actually help?

Sleep-deprived adults performed better on cognitive tests after taking certain amino acid supplements. Multiple 2025 studies ...

Pure Leaf introduces Pure Leaf Mental Focus, the brand's first line of sparkling, real brewed iced teas, made with naturally ...

And the 6 best we recommend.

Your food choices before bed may be making it harder to get restful sleep. Foods like refined carbs and ultra-processed foods ...

Matcha provides higher antioxidant concentration due to whole-leaf consumption, and the aforementioned “calm alertness” with ...

Functional beverages are evolving from supporting physical health to enhancing mental focus, productivity, relaxation, and ...

A lifelong insomniac tests the internet’s most obsessive nighttime rituals — from magnesium to wind-down hacks — to see ...