Sleep Archives - healatlas

Heart Rate Variability: What HRV Reveals About Your Health

Heart rate variability (HRV) reflects nervous system balance. Research links higher HRV with better fitness, recovery, sleep, and lower disease risk.

How morning sunlight resets circadian rhythm, boosts mood, and improves sleep — what circadian research on early light exposure shows.

Research suggests tart cherry juice may improve sleep, ease muscle soreness, and lower uric acid. Here’s what the science actually shows.

L-theanine, the amino acid in green tea, is studied for calm focus, lower anxiety, and better sleep. Here is what research actually shows.

Scientists are revisiting leptin to enhance GLP-1 weight loss drugs and treat rare metabolic diseases. Here’s what new research shows.

Continuous glucose monitors are going mainstream. Here’s what research says about CGMs for non-diabetics — the benefits, limits, and the hype.

Research suggests most people take far more melatonin than needed. Here is what science says about dose, timing, and who benefits.

Cannabis may feel like it helps you sleep, but research on REM, sleep quality, and tolerance tells a more complicated story.

Magnesium may improve sleep, ease anxiety, and aid muscle recovery. Here’s what research reveals about this often-overlooked essential mineral.

Sleep apnea raises heart, brain, and metabolic risk. New research on tirzepatide, oral devices, and nerve stimulation expands options beyond CPAP.