Thursday 16 April 2026 – 07:39 AM
Hot weather can cause fatigue in affected people With heart diseaseBy causing dehydration and blood pressure changes, experts advise balanced hydration, a light diet, smart exercise, and monitoring warning symptoms. As temperatures rise, most people worry about feeling uncomfortable, but for individuals with heart disease, extreme heat may pose serious health risks.
Doctors warn that there is a close connection between hot weather and heart health, as the body exerts greater effort to maintain the balance of fluids and temperature, which puts additional pressure on the cardiovascular system. Hot weather forces the body to make a great effort to maintain its internal balance, that is, the mixture of fluids and gases in it, and since these efforts may cause additional pressure on people who already suffer from heart disease, the matter is not only limited to feeling uncomfortable, but it may also affect their ability to perform optimally and their ability to receive treatment, by affecting the cardiovascular system.
How does temperature affect blood viscosity?
According to what was published in the British newspaper Daily Mail, high temperatures may lead to thinning of the blood, which reduces the possibility of it clotting. This change is especially dangerous for those who take blood-thinning medications, as it increases the risk of bleeding and other complications. Maintaining adequate hydration is crucial to help regulate blood viscosity during hot weather, especially for individuals who suffer from cardiovascular problems.
The effect of dehydration on heart function
Health experts explained that these efforts can put additional pressure on people who already suffer from heart disease. It is not just about how uncomfortable you feel; Rather, it can affect your ability to perform at your best, and possibly receive treatment, by affecting the cardiovascular system. During high temperatures, the body attempts to cool itself by sweating and increasing blood flow to the skin. This process may lead to fluid loss and changes in blood pressure. For heart patients, this additional burden may exacerbate existing medical conditions and increase the risk of complications such as dizziness, fatigue, or even heart disease.
Dehydration is one of the biggest concerns during the summer, as excessive sweating may lead to low blood pressure, forcing the heart to work harder to pump blood efficiently. However, experts warn that simply drinking large amounts of water is not always the best solution, and fluid intake should be balanced and under the supervision of a doctor, especially for patients who take medications such as diuretics.
