Regular High Energy Breakfast, TV time reduction decreases heart attack risk

Our results emphasize the importance of avoiding prolonged periods of sedentary behavior," Tsalamandris said. "These findings suggest a clear message to hit the 'off' button on your TV and abandon your sofa. Even activities of low energy expenditure, such as socializing with friends or housekeeping activities, may have a substantial benefit to your health compared to time spent sitting and watching TV."

The study also found that watching more TV was associated with an increased risk of other cardiovascular risk factors, including high blood pressure and diabetes. Compared to those watching less than seven hours of TV per week, those watching more than 21 hours per week were 68 percent more likely to have high blood pressure and 50 percent more likely to have diabetes.

"Since our results emphasize the clinical benefit of low energy expenditure activities, performing recreational activities, weight lifting, stretching bands or treadmill exercise while watching TV may be a healthy alternative," Tsalamandris said.

Benefits of a High-Energy Breakfast

In the second part of the study, participants were divided into three groups based on how much of their daily caloric intake came from breakfast: high-energy (breakfast contributing more than 20 percent of daily calories), low-energy (5-20 percent of daily calories) or skipped breakfast (less than 5 percent of daily calories). In total, about 240 people reported a high-energy breakfast, nearly 900 ate a low-energy breakfast and about 680 skipped breakfast.

Breakfast foods commonly eaten by those in the high-energy group included milk, cheese, cereals, bread and honey. Breakfast for those in the low-energy group typically included coffee or low-fat milk along with bread with butter, honey, olives or fruit.

The researchers found those who ate a high-energy breakfast tended to have significantly healthier arteries than those who ate little or no breakfast. Even after accounting for cardiovascular risk factors, both pulse wave velocity and arterial thickness were, on average, highest in those skipping breakfast and lowest in those eating a high-energy breakfast.

Specifically, arterial stiffness was abnormal in 15 percent of those skipping breakfast, 9.5 percent of those consuming a low-energy breakfast and 8.7 percent of those consuming a high-energy breakfast. Similarly, more plaque was found in in the carotid arteries of 28 percent of people skipping breakfast, 26 percent of those consuming a low-energy breakfast and 18 percent of those consuming a high-energy breakfast.

"A high-energy breakfast should be part of a healthy lifestyle," Tsalamandris said. "Eating a breakfast constituting more than 20 percent of the total daily caloric intake may be of equal or even greater importance than a person's specific dietary pattern, such as whether they follow the Mediterranean diet, a low-fat diet or other dietary pattern."

However, Tsalamandris also indicated that because most study participants followed a Mediterranean diet overall, it is unknown how the study findings translate to people following different dietary patterns.

Since the research was observational, the study does not prove cause and effect, and the reason for the association between a high-energy breakfast and better heart health is not known. Based on previous studies, the researchers offered two possible explanations. One is that people who eat breakfast tend to eat healthier food overall and have fewer unhealthy lifestyle patterns such as smoking and sedentary behavior than those who skip breakfast. Another is that the specific breakfast foods consumed in the high-energy group, such as dairy products, may benefit heart health.

The researchers plan to continue to track health outcomes in the study participants for at least 10 years, with a primary focus on assessing potential impacts of environmental exposures.

Provided by: American College of Cardiology