Low muscle tone and autism often share the same root cause. See what the cerebellum and three rare creatine genes explain, and what actually helps.

Symptoms of fat malabsorption include greasy stools, bloating, and unexplained weight loss. Learn what causes it and when it signals something more.

A low Faecalibacterium prausnitzii result is common after antibiotics or a gut infection. Here is what raises it back up, and why recovery speed differs.