Your hands and feet are cold all the time because of bad blood circulation?! Here are a few tips how to solve this problem!
Some simple changes in your nutrition could help you a lot. Try to add more fibers. Eat more fruits and vegetables every day.
One more thing you could do is to drink more fresh water (at least 5-6 glasses a day). Try to reduce coffee consumption.
Try to exercise almost every day. You can walk, work at home, swim or whatever you want. You will see improvements in a few weeks.
Keep the cholesterol level under control and reduce all unnecessary fats.
Consider the possibility of intaking omega-3 fatty acids. Intake them as pills or add more fish in the nutrition.