With more than three-quarters of children and teens experiencing depression or anxiety, parents are desperate for effective solutions. Now, new research from the University of South Australia shows that something as simple as regular exercise could be a powerful intervention to support young people’s mental health.

In the largest meta-meta-analysis of 375 clinical trials involving more than 38,000 young people, UniSA researchers found that when children took part in structured exercise programs, their symptoms of depression and anxiety improved. Specifically, the study found that:

• Anxiety improved most through low-intensity, resistance exercises, such as light weights or gentle circuit activities.
• Depression improved most through moderate-intensity, mixed-mode and resistance training, including circuits that combine aerobic and strength programs, particularly in programs lasting less than three months.

The biggest improvements in depression symptoms occurred in programs lasting fewer than 12 weeks, suggesting that benefits can emerge relatively quickly – especially for children aged 12 and over.

No significant differences were seen among the frequency of exercise sessions per week.

Children with depression and ADHD also showed the greatest improvements from exercise.

Lead researcher, UniSA’s Dr Ben Singh says the findings present parents with a non-invasive, low-cost solution to combat poor mental health in kids.

“Depression and anxiety are among the most prevalent mental health issues affecting children and

teenagers worldwide,” Dr Ben Singh says.

“Evidence-based treatment guidelines often recommend cognitive behaviour therapy and antidepressants as first-line interventions, yet 40-60% of children don’t receive treatment or fail to gain sufficient benefits, so we clearly need alternatives.

“Exercise is a low-cost, widely accessible strategy that could make a real difference to children’s mental health. And while people know that exercise is generally good for your health and wellbeing, there is little evidence that shows how exercise works for kids nor the types of exercise that might work better than others.

“Our study draws together global evidence to show that gentle, light-intensity exercise is highly effective in reducing anxiety in children and teens, while medium-intensity programs that combine resistance and aerobic training – like circuits with weights – can counteract depression.

“Importantly, it demonstrates how exercise is an effective, accessible, lifestyle intervention that can immediately improve mental health issues in children, without first defaulting to medicines.”

Senior researcher, UniSA’s Prof Carol Maher says the findings reiterate the importance of exercise for mental health.

“Exercise should be a core part of mental health care for children and teens, whether at school, in the community, or clinical settings,” Prof Maher says.

“Short, structured programs that include strength training or a mix of activities seem especially promising, but simply exercising, even for short amounts of time will deliver benefits.

“And for parents, rest assured – you certainly don’t need to fork out money for a gym membership or training program; play-based activities, games, and sport are all valuable forms of movement that can support mental wellbeing.

“The key message is simple: get active and keep active. Even short bursts of movement can make a real difference to a child’s mental health and wellbeing – especially for those who are struggling”.

In the U.S., 1 in 3 adults is at risk for a newly recognized syndrome that comes from a combination of heart disease, kidney disease, type 2 diabetes and excess body weight. This cluster of conditions, called cardiovascular-kidney-metabolic (CKM) syndrome, is an example of how problems in one part of your body can affect other parts.

To avoid CKM syndrome, health experts suggest paying close attention to four of the American Heart Association’s Life’s Essential 8 – blood pressure, lipids, body weight and blood sugar level – which are core health factors that impact your metabolic health.

Good metabolic health means your body uses energy well and keeps these factors in a normal range. However, when numbers are off in one area, it can affect others, raising your risk for heart disease, stroke, kidney disease and diabetes.

Consider these tips from the American Heart Association to help keep your core health factors under control.

Blood Pressure

High blood pressure, also known as hypertension, happens when the force of your blood pushing against the walls of your blood vessels is too high. High blood pressure is a leading cause of heart disease, stroke and kidney disease.

Because high blood pressure doesn’t have symptoms, the only way to know you have it is to get your blood pressure checked. Healthy blood pressure is below 120/80. If your blood pressure is 130/80 or higher, talk to your doctor about checking your other core health factors.

Lifestyle changes can help reduce high blood pressure. One example is a Dietary Approaches to Stop Hypertension (DASH) eating pattern that’s low in fat and rich in fruits, vegetables, whole grains and low-fat dairy products. Losing 10 pounds and reducing alcohol consumption can also reduce blood pressure.

Cholesterol

Cholesterol is a waxy substance your liver makes then circulates in the blood where your body uses it to build cells and make vitamins and hormones. You may also get cholesterol from eating animal products. If there’s too much cholesterol circulating, your risk of type 2 diabetes, heart disease and stroke may increase.

For optimal CKM health, your LDL cholesterol should be below 100 and triglycerides below 150. Triglycerides are the most common type of fat in the body. If your triglyceride level is 135 or higher, talk to your doctor about decreasing your risk.

Losing body weight and increasing physical activity decrease triglyceride levels. In addition, DASH and Mediterranean (plant-based, high-fiber, low-fat) eating patterns support healthy LDL and triglyceride levels.

Body Weight

Healthy weight may be determined by body mass index (BMI), a number that represents your weight in relation to your height. Extra body fat can mean a higher risk for many health problems, including heart disease, stroke, high blood pressure, high cholesterol and diabetes.

CKM syndrome starts when BMI is 25 or higher and waist circumference is 88 centimeters or higher for women and 102 centimeters or higher for men. Aim for a BMI between 18.5-25.

To lose weight and keep it off, start by setting realistic goals. Understand how much and why you eat, manage portion sizes, make smart snack substitutions and be physically active.

Blood Sugar

High blood sugar can slowly damage the kidneys. In fact, diabetes is the leading cause of kidney disease, and it increases the risk of heart attack and stroke.

Blood sugar is measured in two ways: a fasting blood glucose test (short term blood sugar) and an A1C test (long term blood sugar control). A normal fasting blood glucose level is 70-99 and a normal A1C level is below 5.7%. Fasting blood glucose above 125 and A1C of 6.5% or higher means you have diabetes.

Habits that help you avoid high blood pressure, weight gain and high cholesterol also keep your blood sugar in check. These are especially important if you have a family history of diabetes.

Learn more about CKM syndrome and how to manage your risk at heart.org/CKMhealth.

Being physically active for one to two days a week, often called a “weekend warrior,” may provide comparable health and life-prolonging benefits as smaller doses of daily physical activity if the physical effort is moderate to vigorous and totals 150 minutes a week in line with recommended guidelines for weekly physical activity.

This is according to new research published in the Journal of the American Heart Association, an open access, peer-reviewed journal of the American Heart Association.

“You don’t need to exercise every day to stay healthy. As long as you get 150 minutes of moderate to vigorous physical activity per week — whether packed into one to two days or spread out — you can significantly reduce your risk of dying from cardiovascular disease, cancer or other causes,” said study corresponding author Zhi-Hao Li, Ph.D., an epidemiologist in the School of Public Health at Southern Medical University in Guangzhou, China.

“This message is encouraging news for busy people who struggle to fit in daily workouts but can manage a concentrated burst of activity on weekends or over a couple of days,” Li said. “The research provides reassuring evidence that even sporadic physical activity can have lasting health benefits, making it easier for people to prioritize their well-being amid busy schedules.”

To achieve health benefits, both the World Health Organization and the American Heart Association recommend that throughout a week adults engage in 150 to 300 minutes of moderate-intensity aerobic physical activity, or 75 to 150 minutes of vigorous-intensity aerobic physical activity, or an equivalent combination of moderate and vigorous-intensity activity.

Researchers examined health and physical activity data for more than 93,000 people in a large biomedical database in the U.K. to explore how different physical activity patterns may affect the risk of dying from all causes, specifically cardiovascular disease and cancer. They reviewed physical activity data collected from wrist accelerometers, devices that measure movement and are likely more accurate than asking participants about their activity.

The study categorized the data into three groups: “active weekend warrior” — people who completed most of their exercise in one or two days; “active regular” — those who spread their activity throughout the week; and “inactive” — participants who did not complete the recommended minimum of 150 minutes of weekly physical activity.

Compared to the inactive group, the weekend warrior and active regular groups had a significantly lower risk of death from all causes, cardiovascular disease and cancer if they completed 150 minutes of physical activity a week.

The analysis also found:

• For weekend warriors, the risk of death from all causes was 32% lower; the risk of death from cardiovascular disease was 31% lower; and the risk of death from cancer was 21% lower.
• Among participants in the active regular group, the risk of death from all causes was 26% lower; the risk of death from cardiovascular disease was 24% lower; and the risk of death from cancer was 13% lower.
• No significant differences in the risk of death surfaced between the weekend warrior vs. the active regular group.

While the new research aligns with previous studies, it is the first to analyze the relationship between physical activity patterns measured by accelerometers and the risk of death from cardiovascular disease and cancer.

Some of the findings surprised the research team, who initially expected that spreading activity throughout the week would be more beneficial. They did not anticipate that weekend warriors’ condensed physical activity would reduce the risk of death from disease.

“This reinforces the idea that meeting the 150-minutes of physical activity per week guideline is key to longevity, regardless of the activity pattern,” Li said. “Any activity — whether structured exercise such as jogging or daily tasks such as gardening — can be included if the intensity is moderate to vigorous.”

American Heart Association expert volunteer Keith Diaz, Ph.D., said the findings emphasize that the total volume of physical activity is the crucial factor for health benefits, rather than how it is distributed across a week. Diaz, the Florence Irving Associate Professor of Behavioral Medicine at Columbia University Medical Center in New York, was not involved in this research.

“Many people struggle to fit in daily exercise during the workweek; however, this research shows that even if you can only be active on the weekends, you can still gain meaningful health benefits,” said Diaz, a member of the Association’s Physical Activity Science Committee.

“One important caveat to remember is that trying to fit 150 minutes of exercise into just one or two days can be a lot on your body,” he added. “Some research suggests that weekend warriors have a slightly higher risk of musculoskeletal injuries compared to those who exercise more regularly. However, the benefits of exercising just on the weekend far outweigh the potential risks. If you are going to be a weekend warrior, make sure you do proper warm-ups and build up and progress to higher volumes of activity over time. This will help to reduce your risk of injuries.”

The study had several limitations, including that physical activity was only measured at baseline; participants lived in the U.K. and most were white, so the results may not apply to other populations. The researchers said future studies should be conducted to confirm these results in more diverse groups of people throughout the world and with more consideration for contradictory factors such as genetic predisposition or environmental exposures that may influence physical activity and the outcomes.

Study details, background and design:

• The research data focused on seven days of accelerometer-measured physical activity from 2013 to 2015 for 93,409 participants, aged 37 to 73, enrolled in the UK Biobank.
• More than 56% of the participants were women, 97% were white and their average age was 62 years old.
• Based on accelerometer data, more than 42% of participants were classified as weekend warrior, about 24% as active regular and nearly 34% as inactive.
• The accelerometers captured a range of activities, including walking, jogging, stationary cycling, elliptical exercises, household chores, gardening and leisure activities such as dancing.
• During eight years of follow-up, nearly 4,000 adults died from all causes, including about 17% from cardiovascular disease and about 45% from cancer.
• Compared to the inactive participants, those who exercised during two days each week were more likely to be men, younger, have a college degree, non-smokers, non-drinkers, less likely to have Type 2 diabetes and/or to have lower body mass index (an indicator of body fat to determine healthy weight).