Depression often results in significant economic and health burdens on society. One factor that contributes to this burden is the challenge in successful treatment of depression. Research indicates that nearly half of patients do not respond to initial treatment and one-third remain depressed even after multiple treatment attempts. While this indicates a need for more effective ways to treat people with depression, many researchers are also examining strategies to prevent depression.
In my research, I’ve observed patients with depression whose conditions have improved by following an exercise program as a part of treatment. Now, a recent study published in the American Journal of Psychiatry indicates that exercise may also be one way to prevent depression. The researchers who conducted this study found that 1-2 hours of exercise per week is enough to significantly reduce the risk of depression. People who reported no exercise were 44 percent more likely to be depressed in the future compared to those who exercised for 1-2 hours per week.
While 1-2 hours per week may sound like a daunting goal for someone who doesn’t exercise, so it is even more encouraging that the results suggest that as little as 30 minutes of exercise per week may be beneficial. Also, the researchers found that the intensity of the exercise did not impact the preventive effect. So, one 30-minute walk per week may be enough to help prevent depression.
While the results of this study are encouraging, more research in this area is needed. We need to develop effective interventions to increase exercise among persons at risk for depression and we need to understand the biology of how exercise prevents depression. With a greater understanding of these issues, we can hopefully reduce the burden caused by depression.
Chad D. Rethorst, Ph.D. Associate Professor Center for Depression Research and Clinical Care Department of Psychiatry University of Texas Southwestern Medical Center
ROCHESTER, Minn. – A new survey by Mayo Clinic revealed that more than two-thirds of African-Americans are concerned about their heart health (71 percent), which is significantly more than Caucasian (41 percent) or Hispanic (37 percent) respondents. Respondents from the South (51 percent) were also significantly more likely to express concern than those in the Northeast (39 percent) or West (35 percent).
These findings were uncovered as part of the Mayo Clinic National Health Checkup, which first launched in January 2016 and provides a quick pulse on consumer health opinions and behaviors at multiple times throughout the year.
“The Mayo Clinic National Health Checkup helps us to better understand the health knowledge and practices of all Americans, beyond the patients that walk through our doors,” says John Wald, M.D., medical director for Public Affairs at Mayo Clinic. “With each survey, we’re able to pinpoint what we’re doing well as a nation and what needs improvement, so that we can create a dialogue about those important topics.”
MEDIA CONTACT: Kelly Reller, Mayo Clinic Public Affairs, 507-284-5005, [email protected]
Search engines help consumers learn more, manage health conditions
When it comes to knowledge of heart health, doctors (81 percent) were cited as having the biggest influence on consumer knowledge, followed by family members (63 percent). The most likely reasons to think about heart health include:
A family member or friend being diagnosed with heart disease (84 percent)
Visiting a primary care physician (80 percent)
Conversations with a significant other or children (69 percent)
1 in 4 has family history of heart disease before age 55
Nearly a quarter of respondents (24 percent) cited a family history of heart disease (i.e., heart attack, bypass surgery or stents before 55). This history impacted knowledge and behaviors for many respondents:
Eighty-five percent answered that they were more aware of the symptoms of a heart attack because of their family history.
Among baby boomers, 53 percent of those with a family history of heart disease answered that they took a daily aspirin, and the same percentage kept an aspirin with them at all times.
When asked what they do to help prevent heart disease, men (68 percent) were more likely than women (60 percent) to say that they exercise regularly, and women (68 percent) were more likely than men (58 percent) to answer that they eat heart-healthy foods.
“Knowledge is power,” says Dr. Wald. “You can manage your risk for heart disease by taking proactive steps, such as improving your diet, exercising regularly, and keeping a check on your cholesterol and blood pressure. To top it off, Mayo Clinic now offers a blood test that can predict the likelihood of having a heart attack within one year, which helps us intervene early and prevent a heart attack before it happens.”
Women exercise for weight loss; men exercise for recreation
The survey also explored healthy behaviors, such as exercise, revealing that men and women have different motivators. Women (70 percent) are more likely than men (60 percent) to exercise for weight loss or management; whereas, men (59 percent) are more likely than women (45 percent) to exercise for recreation. Less than half of respondents answered that they knew what their target heart rate should be during exercise. Maintaining a target heart rate can reduce the risk of overtraining or not training enough.
Job and/or school ranks as top stressor for Americans
Unrelieved stress can damage your arteries and worsen other risk factors for heart disease. When asked to pick the one factor that contributed the most to their level of stress over the past year, respondents were most likely to answer their job and/or school (29 percent):
Baby boomers (17 percent) were more likely than millennials (10 percent) to cite politics as a top stressor.
Hispanic respondents (41 percent) were more likely to answer job and/or school than Caucasians (27 percent) or African-Americans (18 percent).
African-American respondents (20 percent) were more likely to list health issues as their primary cause of stress than Caucasians (10 percent) or Hispanics (4 percent).
“Our third National Health Checkup revealed that African-Americans not only are more concerned about their heart health, but they also experience significantly more stress as a result of their health issues,” says Dr. Wald. “It is clear that we need to help empower all Americans, and in particular those who are most concerned about their heart health, to help manage their risk. Discuss these concerns with your doctor, and know your family history.”
About the Mayo Clinic National Health Checkup The Mayo Clinic National Health Checkup was conducted through an ORC International Telephone CARAVAN survey of 1,005 adults living in the continental U.S. and was conducted Dec. 15-18, 2016. To learn more, visit healthcheckup.mayoclinic.org.