Sleep problems can be divided into four main categories based on the pattern of sleep disturbance that you experience. These patterns can help you narrow down some of the contributing factors in your sleep trouble.

Histamine and MTHFR are bound together for so many reasons. Histamine levels are affected by methylation, and histamine breakdown is methylation-dependent. Another big reason is that just like MTHFR, histamine has its fingers in so much more than just allergies.