If you are having trouble falling asleep, it could be a magnesium deficiency. Too much caffeine and stress and improper hydration post exercise can all deplete magnesium levels. This can lead to muscle cramps, headaches, and other physical symptoms like insomnia. And since approximately half of adults are deficient in this mineral to some degree, it’s a good idea to get some magnesium-rich foods into your daily routine. Kelp, almonds, figs, dates, brown rice, and the much-loved avocado are excellent options.