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Exercise is important for our
. It lowers the
of heart
and helps us to stick to a healthy
. Doctors say that exercising in cold weather is
for us. It benefits our
and mental health. This is because the cold gives our heart a bigger
. A doctor from New York explained why. She said: "Your
has to work a little bit harder to pump
around your body. This can help to boost your
over time."
