Does tart cherry juice help sleep? Every key trial in one table with sizes and results, plus juice vs concentrate vs capsules and the sugar question.
What ashwagandha trials measured and over how long, what research says about timing and tea, and the TGA liver warning signs to know.
What the magnesium and sleep trials really tested, why glycinate labels mislead, safe upper limits (NHMRC, NIH, EFSA), medicine interactions and better sleep first steps.
What changes in the heart with age, what WHO and heart guidelines recommend, the numbers to check and a simple weekly checklist.
How sleep supports recovery from exercise, what studies show, how age changes it, a training-day sleep plan and the mistakes that cost sleep.
Which sleep changes are a normal part of ageing and which are worth a GP visit, plus the simple habits with the best evidence and a two-week sleep reset.