Muscle cramps

The one that jolts you out of sleep. The one in the foot the second you point your toes in a yoga class. The one in the hamstring at the bus stop. New, frequent, painful muscle cramps in midlife are a real, well-documented pattern — and mostly, they're fixable.

Four things stacking. Most of them respond to small changes.

Electrolyte handling shifts with estrogen. Estrogen supports magnesium and potassium retention. As it drops, more is lost through sweat and urine. Cramps are often the first visible sign, before any blood test reads low.

Dehydration is under-noticed at 45. Thirst signals blunt with age. The exact same day that felt fine at 30 leaves you two glasses short at 48. Night calf cramps are one of the earliest quiet flags.

Statins and diuretics are common triggers. Statins can cause muscle cramping and pain in a subset of people. Blood-pressure diuretics deplete potassium and magnesium. Both are worth a medication review, not a stop-taking-it decision.

Restless legs and cramps are cousins, not the same. Cramps are a locked, painful contraction. Restless legs is an urge to move without pain. They can co-exist, but the workup and fix differ — see the restless-legs guide if that's the fit.

Start with the cheap, boring, high-evidence tools. Most people see a real drop inside two weeks.

Magnesium glycinate or citrate, 200 to 400 mg most nights. The best-studied cheap intervention for nocturnal leg cramps; that range is what trials use, not a dose set for you. Glycinate is gentler on the gut than oxide. Give it a fortnight before judging, and check with a doctor or pharmacist first if you have kidney disease.

Add electrolytes, not just water. Plain water can dilute sodium further. A pinch of salt and a squeeze of citrus in your first glass, or a low-sugar electrolyte sachet on hot or active days, prevents most cramps.

Stretch the calf and hamstring before bed. Two minutes of a wall calf-stretch and a seated forward fold, most nights, reduces night cramps in trials. Ridiculous ratio of effort to result.

Break up cramp with the opposite muscle, not massage. When the calf locks, pull your toes hard toward your shin (dorsiflex). It stops the spasm faster than rubbing the belly of the muscle.

Review medications and blood tests. Ask for magnesium, potassium, vitamin D and B12. Discuss statins, diuretics and any new prescriptions. Never stop on your own — bring the pattern to your doctor.

MHT restores some of the mineral-handling story. Many people report cramps quiet noticeably on transdermal estrogen. Not the reason to start MHT alone, but a real side benefit worth naming.