Millions of people around the world take cholesterol-lowering medicines every day. Doctors often prescribe these medicines because high cholesterol is one of the biggest risk factors for heart attacks and strokes.
As people get older, cholesterol levels often rise, making treatment even more important. By lowering harmful cholesterol, these medicines can help protect the heart, improve blood vessel health, and reduce the chance of serious heart disease. For many people, they are life-saving medicines that should only be used under the advice of a healthcare professional.
The most common cholesterol medicines are called statins. Popular examples include Lipitor and Crestor. Statins work by reducing the amount of cholesterol made by the liver. This lowers the level of LDL cholesterol, often called “bad cholesterol,” which can build up inside blood vessels and block blood flow.
Another newer group of medicines is called PCSK9 inhibitors. These drugs work in a different way. They help the body remove more LDL cholesterol from the bloodstream, allowing it to be cleared more effectively. Both treatments are very good at lowering cholesterol and reducing the risk of heart disease.
Although these medicines have helped millions of people, scientists continue to study whether they have other effects on the body. Every medicine has benefits and possible side effects, and understanding both helps doctors choose the best treatment for each patient.
A recent study suggests that these cholesterol-lowering medicines may affect parts of the body that are not directly related to the heart. Researchers found evidence that PCSK9 inhibitors may influence the lungs. At this stage, scientists do not know exactly what this means for long-term health, and more research is needed before firm conclusions can be made.
The same study also found some interesting findings about statins. Some people who are genetically more likely to respond in certain ways to statins may gain weight or have a higher amount of body fat.
Researchers also found evidence suggesting statins could lower testosterone levels. Testosterone is an important hormone for both men and women because it supports muscle strength, bone health, energy levels, and many other normal body functions.
There was also an encouraging finding. The study suggested that statins may be linked with a larger hippocampus, which is a small area deep inside the brain that plays an important role in learning, memory, and emotions.
Scientists believe that maintaining a healthy hippocampus may help reduce the risk of conditions such as dementia and depression. However, researchers stress that more studies are needed to understand whether this brain change leads to real health benefits.
The research was led by Kitty Pham, a Ph.D. student at the University of South Australia. Instead of carrying out a long clinical trial, the team used genetic information to explore how these medicines might influence different parts of the body.
Genes are like the body’s instruction manual. By studying naturally occurring genetic differences, scientists can estimate how people might respond to medicines over many years. This approach can provide useful clues much faster and at a much lower cost than traditional long-term studies.
The researchers found that some genetic patterns were linked with a greater chance of weight gain among people taking statins. While these findings are important, they do not mean that everyone taking statins will experience these effects. Many people take statins for years without developing major side effects.
If you are taking a cholesterol medicine, experts say the most important message is not to stop your medication on your own. These medicines have been shown in many large studies to reduce the risk of heart attacks and strokes.
If you notice unexpected weight gain, changes in breathing, or other new symptoms, speak with your doctor. Your doctor can decide whether the medicine should be adjusted or whether another cause may be responsible.
Studies like this help doctors better understand how medicines affect the whole body. As more research becomes available, treatments may become even more personalized, helping patients receive the medicine that offers the greatest benefit with the fewest side effects.
If you care about heart health, please read studies about how eating eggs can help reduce heart disease risk, and Vitamin K2 could help reduce heart disease risk.
For more information about heart health, please see recent studies about how to remove plaques that cause heart attacks, and results showing a new way to prevent heart attacks, strokes.
The research was published in the British Journal of Clinical Pharmacology.
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