India, April 16 -- Exercising at a time that matches your body clock may help lower the risk of heart disease, especially in people who are already at risk, according to a recent study published in the open-access journal Open Heart.

Researchers studied 150 people aged 40 to 60. They identified whether each person was more active in the morning or evening using a questionnaire and body temperature checks. All participants had at least one heart disease risk factor, such as being overweight, having high blood pressure, or not exercising regularly. Some also had a family history of early heart disease.

Participants were divided into two groups. One group exercised at a time that matched their natural body clock, while the other group exerci...