Life-saving warnings your nails are sending
Blue Nails
Fingernails that suddenly turn blue or purple often indicate Hypoxia, which is a lack of oxygen.
Loose Fingernails
If you have loose fingernails that are starting to detach, it can be indicative of Psoriasis, Nail fungus infections, Amyloidosis, Raynaud’s Disease, Sarcoidosis or Hyperthyroidism.