PS for hands and forearms- and this one can hurt some so test how much weight you want to put on your wrists:
down on all fours, knees directly under the hips and wrists directly under the shoulders- flat back
From this position lift hans breifly and slid them under you so your fingers are facing towards your kenees and your palms are facing upwards- this stretches your wrists out and the upper inside of you forarm
Perfect for writes cramp-
Hodl with full upper body weight or as much pressure as is comfortable
repeat 3 times and hold for 45 sec to a minute each time..