Exercise Boosts Your Mood, And One Molecule Helps Explain Why : ScienceAlert

Research indicates that one in five Canadians is currently facing mental health challenges such as anxiety and depression. Despite increased awareness and discussions around mental health, there is still a significant stigma attached to these conditions. In fact, individuals are three times less likely to report a mental illness compared to a physical one.

While there are numerous effective treatments available for mental health issues, accessing diagnosis and treatment can be a lengthy process. Some individuals may also experience side effects from prescription medications used to manage mood disorders, leading them to avoid or discontinue their medication. Additionally, traditional therapy can be expensive and may not always be covered by insurance or benefits.

However, there is a powerful tool that is often overlooked in mental health care – exercise. Exercise, commonly prescribed for improving heart and metabolic health, can also be a valuable addition to mental health management.

Exercise and Mental Health

Many individuals have experienced the positive effects of exercise on their mood, often referred to as post-workout bliss. Scientific research supports the idea that exercise can help alleviate symptoms of anxiety and depression in both the short and long term. Exercise aids in mood regulation and enhances emotional resilience to acute stress.

At a biochemical level, exercise triggers the release of endocannabinoids and endorphins, hormones and molecules that contribute to feelings of happiness and contentment. This phenomenon is commonly known as the “runner’s high,” where individuals experience euphoria following physical activity.

The Role of Tryptophan

Tryptophan, an essential amino acid obtained from our diet, plays a crucial role in the production of serotonin, known as the “feel-good hormone.” Tryptophan can also be broken down into different molecules with varying effects on the brain and body.

The kynurenine pathway is responsible for metabolizing tryptophan, yielding products like kynurenic acid and quinolinic acid. While some metabolites are beneficial for brain health, others can contribute to toxicity and inflammation, potentially leading to conditions like depression, Alzheimer’s disease, and cancer.

Research suggests that exercise can influence the kynurenine pathway, promoting the production of beneficial metabolites and reducing the levels of harmful ones.

Immediate Benefits of Exercise

Studies have demonstrated that engaging in physical activity can lead to immediate increases in brain-protective molecules like kynurenic acid. These changes have been observed in the blood and muscles following various forms of exercise, including endurance cycling, weight lifting, and high-intensity interval training.

Individuals with metabolic conditions such as type 2 diabetes have also shown improvements in tryptophan metabolites after a single exercise session. These benefits are not limited to specific age groups, indicating that exercise can be beneficial for individuals of all ages.

While laboratory-based studies have primarily focused on traditional exercise protocols, being more physically active in general can enhance the profile of these metabolites, suggesting that structured workouts are not always necessary to reap the rewards of exercise.

Embracing Exercise for Mental Well-being

Exercise serves as a potent tool for enhancing mental health by managing stress, boosting the production of feel-good hormones and metabolites, and supporting mood disorders. Additionally, physical activity can provide a change of scenery, social interaction, and a temporary distraction, all of which are beneficial for mental well-being.

Participating in group activities like running clubs and sports leagues can offer a holistic approach to improving mood and overall mental health.

Despite the initial reluctance to engage in exercise, especially during colder months, the benefits far outweigh the challenges. Incorporating regular physical activity into your routine can significantly contribute to improved mental health and well-being.

Meghan McCue, Ph.D., Postdoctoral Fellow, Faculty of Health Sciences, McMaster University

This article is republished from The Conversation under a Creative Commons license. Read the original article here.