COLD HANDS AND FEETCathy, Idaho: I shared Aviach with my 31 year old daughter. She always takes green drinks, and we wanted to see how it would compare. She has something called Raynaudâ€™s Disease. When exposed to cold, even summer air-conditioning blood vessels in her hands and feet constrict, causing lack of of blood supply. Every night, always, she goes to bed with cold feet and cold hands. Right away, first day, when she took Aviachi, no more cold hands and cold feet. Numbness in hands so much better. She is no longer cold all the time. She is also noticing that stiffness is less in her body. The blood is flowing.