Peer-reviewed research concerning blood sugar, summarized and appraised in plain language with every source cited.
This study looked at whether a quick, low-effort high-intensity interval training routine (REHIT) could improve blood sugar control after meals and over a full day in healthy, active middle-aged men.…
This study looked at how high-intensity interval training (HIIT), where short bursts of hard effort alternate with easier recovery periods, with or without L-citrulline (an amino acid that may boost…
This study set out to see how severe sleep restriction affects appetite, food intake, and appetite-regulating hormones in healthy young men. It compared three nights of very little sleep (2…
This study set out to compare how young and older men's hormone levels respond to a night without sleep. It measured testosterone, luteinizing hormone (LH, a pituitary hormone that signals…
This study set out to see whether restricting the hours of the day a man eats improves how his body handles sugar. Fifteen men at risk of type 2 diabetes,…
This study set out to test whether the benefits of intermittent fasting come only from losing weight. Men with prediabetes ate all their meals inside a 6 hour window early…
This study set out to test whether vitamin D supplements raise testosterone in healthy men. It randomly assigned 98 men with normal testosterone but low vitamin D to a high…
This study looked at whether catching up on sleep at the weekend improves insulin sensitivity and hormones in men who habitually sleep too little in the week. Nineteen such men…