Welcome to our weekly Health Diaries column, where we explore a variety of disease-related topics and simplify complex concepts for our readers.
As a medical doctor, I frequently encounter patients who believe in certain health “facts” that are simply not true. Unfortunately, these myths—often passed down through generations or spread via social media—can prevent people from making informed health decisions. In this article, I will debunk some of the most common health myths to help you separate fact from fiction.
- Myth: You should drink 8 glasses of water daily
Truth: While staying hydrated is important, the idea that everyone must drink exactly eight glasses of water a day is a myth. Water needs vary depending on your age, activity level, climate and overall health. Your body also receives water from food and other drinks such as tea, juice or soup. The best guide is to drink when you feel thirsty and ensure your urine is pale yellow in colour. - Myth: Cold weather causes the common cold
Truth: You don’t catch a cold simply because of cold weather. The real culprits are viruses, particularly rhinoviruses. Cold weather may increase the spread of these viruses as people tend to stay indoors in close contact, making transmission easier. - Myth: Natural remedies are always safe
Truth: Not everything labelled as “natural” is harmless. Herbal remedies can interact with prescription medications, cause side effects or worsen certain health conditions. For instance, some herbs can affect blood pressure or interfere with anaesthesia during surgery. Always consult a healthcare professional before using any natural treatments. - Myth: You can detox your body with juices or supplements
Truth: The body already has a natural detoxification system—your liver, kidneys, lungs and skin. In some cases, extreme detox diets can lead to dehydration, electrolyte imbalances or even kidney damage. - Myth: Antibiotics cure all infections
Truth: Antibiotics are only effective against bacterial infections—not viral ones. Taking antibiotics for viral illnesses such as the flu or common cold is not only ineffective but also contributes to antibiotic resistance, making future bacterial infections harder to treat.
Believing in health myths can lead to unnecessary fear, poor decisions or even harm. Always rely on evidence-based medical advice and seek information from qualified healthcare professionals. In this digital age, misinformation spreads quickly—but so can the truth. Stay informed, ask questions and never hesitate to verify health claims with your doctor.
Dr Lulu contact: healthdiaries@yahoo.com
