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Exercise and a healthy diet in childhood lead to adults with bigger brains and lower levels of anxiety, according to new UC Riverside research on mice.Though diet and exercise are consistently recommended as ways to promote health, this study is the first to examine the long-lasting, combined effects of both factors when they are experienced early in life."Any time you go to the doctor with concerns about your weight, almost without fail, they recommend you exercise and eat less," said study lead and UCR physiology doctoral student Marcell Cadney. "That's why it's surprising most studies only look at diet or exercise separately. In this study, we wanted to include both."The researchers determined that early-life exercise generally reduced anxious behaviours in adults. It also led to an increase in adult muscle and brain mass. When fed "Western" style diets high in fat and sugar, the mice not only became fatter, but also grew into adults that preferred unhealthy foods.These findings have recently been published in the journal Physiology and Behavior. To obtain them, the researchers divided the young mice into four groups -- those with access to exercise, those without access, those fed a standard, healthy diet and those who ate a Western diet.Mice started on their diets immediately after weng and continued on them for three weeks until they reached sexual maturity. After an additional eight weeks of "washout," during which all mice were housed without wheels and on a healthy diet, the researchers did the behavioural analysis, measured aerobic capacity, and levels of several different hormones.One of those they measured, leptin, is produced by fat cells. It helps control body weight by increasing energy expenditure and signalling that less food is required. Early-life exercise increased adult leptin levels as well as fat mass in adult mice, regardless of the diet they ate.Previously, the research team found that eating too much fat and sugar as a child can alter the microbiome for life, even if they later eat healthier. Going forward, the team plans to investigate whether fat or sugar is more responsible for the negative effects they measured in Western-diet-fed mice.Together, both studies offer critical opportunities for health interventions in childhood habits."Our findings may be relevant for understanding the potential effects of activity reductions and dietary changes associated with obesity," said UCR evolutionary physiologist Theodore Garland.In other words, getting a jump start on health in the early years of life is extremely important, and interventions may be even more critical in the wake of the pandemic."During the COVID-19 lockdowns, particularly in the early months, kids got a very little exercise. For many without access to a park or a backyard, the school was their only source of physical activity," Cadney said. "It is important we find solutions for these kids, possibly including extra attention as they grow into adults."Given that exercise was also shown to reduce adult anxiety, Cadney believes children who face these challenges may face unique physical and mental health issues as they become adults in the coming decade.( With inputs from ANI )Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

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Lifestyle :Exercise, healthy childhood diet ensure bigger brains in adults, less anxiety

Exercise and a healthy diet in childhood lead to adults with bigger brains and lower levels of anxiety, according to new UC Riverside research in mice. ...