well that could be poor circulation not stretching enough or dehydration. make sure that you are well hydrated because when you become dehydrated your limbs can start to feel cold and numb. also stretching your calf is very important. just take a few extra minutes to stretch it like this: go to a wall and press the toes and balls of your feet against the wall while the end part of your heel remains on the ground. push your body toward the wall and you should feel the stretch on your calf. if none of this helps it could be a circulation problem so you should see a doctor. i had the same thing happening and the stretching and hydrating made it go away.
i have been exercising and started a heart smart diet now my feet stay cold. what should i do? . a couple of years ago i went to the er with chest pains. i was diagnosed with gerd. i was also given a stress test and was told that i had a healthy heart but that my triglycerides were high and that i should lose some weight. i was 40 years old 5'10 220lbs at the time. over the course of the couple of years i started the process of trying to get my health back. i have been quit smoking for over a year. i have brought my weight down by exercising and a meditereanean diet. now 42 5'10 170 lbs.