I usually exercise often, lately i have slacked. i have been getting these full body spasms. is this from lack of exercise? they get very bad at night

Magnesium can be: Used to help w/muscle spasms but see your doc first. There are many causes for spasms / anxiety and it's best to get trained in strategies to resolve them. Also, too much magnesium can cause the runs and there are several types of magnesium. I use magnesium citrate w/patients. You may also find a brand called jigsaw magnesium helpful. Peace and good health.