What is the cause? I was watching a movie & I felt my right pinky toe become numb. I thought it was from the way I was laying but when I started to move my toe to get it to get numb nothing was happening no tingle nothing. I turned the light on & noticed my picky toe was yellow &cold.
Vitamin B6 deficiency: Vitamin B6 helps change harmful homocysteine into glutathione - a key antioxidant needed by your brain cells. Vitamin B6 deficiency can reduce your concentration, attention, and contribute to memory loss.
1 Free radical damage can cause hair aging, and vitamin C can help protect the scalp and fair follicles from this major hair growth inhibitor.  Biotin and pantothenic acid (vitamin B5) have been used as alternative treatments for hair loss. Biotin rebuilds hair shingles, and vitamin B5 supports the adrenal glands.