Exercise can reduce the risk of many cancers. For example, it helps waste pass through more quickly, reducing contact with cancer-causing agents and lowering the risk of bowel cancer with up to 50%.
Cancer is a group of diseases involving abnormal cell growth. It is a leading cause of death worldwide, but many cancers can be prevented. The majority of cancers, some 90-95% of cases, are due to environmental factors, such as lifestyle and behaviour, and only 5-10% are genetic.
Regular exercise can help reduce the risk of CAD by controlling cholesterol and blood pressure, regulating blood sugar and maintaining a healthy weight.
CAD is the most common cardiovascular disease and a top cause of death. The arteries become narrow as the artery-wall thickens, causing a limitation of blood flow to the heart. Up to 90% of cases may be prevented if the risk factors are avoided.
Regular exercise can reduce body fat and protect against chronic diseases linked to obesity.
Overweight or obese people accumulate excess body fat that has a negative effect on their health. Obesity is affecting 12% of the world population and increases the risk of many physical and mental conditions. It is a leading preventable cause of death worldwide.
Regular exercise can halve the risk of stroke and people who are physically active before a stroke have less severe problems and recover better.
A stroke is a "brain attack". It happens when there is a disruption in the blood flow to the brain and results in cell death. Stroke often leads to permanent disability and is a top cause of death.
Exercising increases insulin sensitivity, so cells are better able to use any available insulin hormone that helps the body use glucose (sugar) for energy.
Diabetes is a group of diseases in which the level of sugar in the blood is too high. Insulin is a hormone that regulates blood sugar, but in diabetes either the pancreas is not producing enough insulin or the cells are not responding to it. Diabetes can cause many complications and premature death.
Regular physical activity can lower your blood pressure. Some of the types of exercise for lowering blood pressure are walking, jogging, cycling or swimming.
Hypertension, or high blood pressure, is a condition in which the blood pressure in the arteries is persistently elevated. It can have no symptoms, but it's a major risk factor for dangerous diseases. Hypertension affects 25% of the population and is believed to be a factor in 18% of deaths.
Exercising strengthens the immune system and can prevent getting sick from viruses and respiratory illnesses and promotes a fast recovery.
Lower respiratory tract infections (LRTI), the most common types being pneumonia and bronchitis, are inflammatory conditions of the lung. Children and the elderly are at higher risk, but pneumonia is a major cause of death among all age groups, accounting for 7% of the world's yearly total.