10 Positive Things That Happen to Your Body After Just One Workout

From a boost in self image to a bump in creative thinking, a single session of exercise can bring you a surprising range of instant benefits.

General goodness for your body


People who work out everyday get crazy benefits—good for them. But what about that very first workout, or just one session? “Overall there are several physical and mental benefits related to any type of exercise,” says Murphy Grant, MS, ATC, PES, executive chair of the National Athletic Trainers’ Association, Intercollegiate Council for Sports Medicine (ICSM), and associate athletic director for sports medicine at the University of Kansas. “Depending on the type of workout you’re doing, there can be lots of beneficial changes, including improved cardiovascular efficiency, increased bone density, higher metabolic efficiency, increased lean muscle mass and of course decreased body fat.” And most people would be surprised to know how much of that good stuff can start in just one exercise session, Grant adds.

Better body image


Having a positive feeling about your body leads to all kinds of good things—check out what these plus-size models have to say about their body confidence. Just one exercise session can have a positive impact on the way a woman sees herself, according to new 2017 research published in Psychology of Sport and Exercise. “Women, in general, have a tendency to feel negatively about their bodies,” study senior author Kathleen Martin Ginis, professor in University of British Columbia, Okanagan’s School of Health and Exercise Sciences, told ScienceDaily. “This is a concern because poor body image can have harmful implications for a woman’s psychological and physical health including increased risk for low self-esteem, depression, and for eating disorders.” In her study, Martin Ginis compared the self-perceptions of a group of women who had completed 30 minutes of aerobic exercise with a group who had instead sat and read. The study found those who had exercised had “significant improvements in their body image” over those who hadn’t exercised. This effect was linked to the women in the exercise group perceiving themselves as being stronger and thinner. “We all have those days when we don’t feel great about our bodies,” Martin Ginis said, according to ScienceDaily. “This study and our previous research shows one way to feel better, is to get going and exercise. The effects can be immediate.”

Enhanced executive function

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“A single session of exercise affects the physiology of basically the entire brain,” says Wendy A. Suzuki, PhD, professor of Neural Science and Psychology in the Center for Neural Science at New York University, and principal investigator on a 2017 review in Brain Plasticity. Dr. Suzuki examined a wealth of scientific data on the range of changes one bout of exercise can achieve. For example, an enormous amount of research has shown one exercise session can enhance activity in the prefrontal cortex, a brain region that is home to executive function skills such as working memory and attention. While the reasons aren’t yet proven, science has some guesses. First, a pair of neurochemicals used by the prefrontal cortex—dopamine and brain-derived neurotrophic factor (BDNF)—both get a boost from a workout, and they’re both tied to higher functioning in the brain. Second, exercise increases the blood’s level of lactate, which is used throughout the brain—in particular by the prefrontal cortex—as energy. The third theory involves the finding that exercise detours blood away from the prefrontal cortex in order to supply the muscles working hard to run a lap or lift a weight. But after exercise, a compensatory surge of blood is rushed back to the prefrontal cortex, which could account for the hyped executive function skills observed after hitting the gym. Find out the best workout for every age.

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