A 2025 randomized, double-blind, placebo-controlled trial published in Nutrients found that supplementing with 100 mg each of vitamin B1 (thiamine) and B2 (riboflavin) daily for four weeks significantly reduced perceived stress and improved sleep quality in young adults.

A 2025 study in Nutrients found that adults who slept longer and had better sleep quality also had stronger handgrip strength—but only when they consumed more protein and followed a higher-quality diet.

A 2025 study from Université de Montréal, published in Communications Biology, revealed that consuming caffeine—even just a few hours before bedtime—can increase high-frequency brain activity during sleep. This is especially true for young adults, whose brains are more sensitive to stimulants.

A 2025 study from Uppsala University found that even short-term sleep deprivation raises inflammation-related proteins linked to cardiovascular disease, even in healthy young adults.