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Although regular exercise is very good for health, extreme training may significantly increase the risk of heart problems. People who regularly engage in high intensity exercise may be at the same level of risks as those who don't exercise at all.

Exercise is the key to a healthy lifestyle. It is good for our body as well as mind. Exercising not only helps us in channeling our negative energies in a constructive way but also keeps us healthy and active. While a regular moderate to high intensity workout provides a lot of benefits for people trying to lose body fat and increase their overall fitness and strength levels, there is a very fine line between intense training and over-training.

While running fast and lifting heavy weights may come under intense training activities but engaging in these high intensity exercises too much may increase your body’s stress levels, thus causing damage to one’s health.

A landmark research study published this year tracked 1,098 healthy joggers and 413 healthy but sedentary non-joggers for 12 years. It examined their frequency and hours of jogging on regular basis and found that jogging from one to 2.4 hours per week was associated with the lowest mortality which an optimal frequency of thrice a week while the very fast paced or strenuous joggers had the same risk of dying from any causes as the sedentary couch potatoes.

Extremely strenuous exercises or over-training has been shown to affect blood parameters which may, in turn, lead to the feelings of depression and fatigue.

The stress caused by intense exercise may increase the risk of various health issues such as digestive dysfunction, sleep disturbances, depression, weight gain (especially around the abdomen), hypothyroidism and memory impairment.

Signs Of Over-Training

If one feels constantly exhausted, ill or rundown, if there is an increase in the fat percent and loss in the muscle mass, these are all the signs of excessive exercise. It’s important to keep a check on your overall health. Any activity that makes you more fatigued and prone to infection should be avoided.

Is High-Intensity Workout Behind The Heart Risks?

Engaging in regular cardio exercises is important as it increases oxygen in blood and endorphins, which are known to be natural painkillers.

Sometimes if these high intensity cardio exercises are continued in the long term, it may do more harm to the heart than good. Experts tested the blood samples of athletes and found that after long running events, the blood contained certain biomarkers which are associated with heart damage. Though these indicators go away by themselves but if the same physical stress is experienced over and over, it may result in physical changes of the heart walls and heart muscle scarring which may further increase the risk of heart rhythm disorders.

One study estimates that although regular exercise reduces the cardiovascular risk by a factor of two or three, the regular strenuous exercises may raise this risk by seven-fold.
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