Running

Last night I abruptly woke up at 4:00 am with a cramp in my left calf. worst sensation a runner can experience. I touched my calf and it was like a rock. pain lasted until I stretched it standing on it.

last time I had this symptoms was like 12 years ago...
all this heat and sweating are consuming my magnesium reserves. time to take some supplements

Oof that sounds awful. Hope it sorts itself out. Is that down to a lack of magnesium then?

There is nothing more powerful in this world than words.

not 100% sure, but lack of it can cause camps...