A lack of physical activity is the biggest risk factor for heart disease in Australian women over the age of thirty. According to researchers, around 3,000 lives could be saved each year in Australia alone if women followed the recommended physical activity guidelines. A research team from the University of Queensland tracked the health of more than 30,000 women.
In women under thirty, smoking was found to be the largest risk factor for developing heart disease. By exercising at least thirty minutes a day (or sixty minutes if overweight), overall health improves significantly, and the risk of heart disease is cut in half.
The researchers argue that women need to be more strongly warned about the dangers of physical inactivity. Inactivity poses a greater risk for heart disease than other factors such as being overweight. Other known risk factors include: poor diet, obesity, smoking, and excessive alcohol consumption.
Physical activity also has immediately noticeable benefits. Exercise triggers the release of endorphins and serotonin—commonly known as the “happiness hormones.” A well-known phenomenon is the “runner’s high,” the euphoric feeling during or after running. This can occur with other forms of exercise as well. Studies show that exercising three to four times per week at moderate intensity yields the greatest effect.