Evidence-Based Medical Knowledge You Can Trust
Infectious diseases are illnesses caused by bacteria, viruses, fungi, or parasites, spreading through contact, food, water, or vectors.
External hemorrhoids cannot be permanently eliminated in 48 hours, but pain, swelling, itching, and inflammation can be significantly reduced within 48 hours using evidence-based medical care, targeted home treatments, and bowel-protective strategies. What Are External Hemorrhoids? External hemorrhoids are swollen veins located under the skin around the anus. They differ from internal hemorrhoids by causing … Read more
Constipation symptoms are among the most common digestive complaints in adults and children. While occasional constipation can occur due to diet or lifestyle changes, persistent or worsening symptoms may indicate an underlying medical condition that requires attention. Understanding constipation symptoms in detail helps patients recognize when self-care is sufficient and when professional evaluation is necessary. … Read more
The Department of Agriculture has new dietary guidelines. They include a food pyramid that looks different from the one you might remember. Now, proteins and healthy fats take center stage. Grains? Not so much. These updates, revealed on January 7, mark a significant shift from earlier advice. The new food pyramid appears almost flipped compared … Read more
A nasal decongestant spray is a common over-the-counter medication used to relieve a blocked or stuffy nose. Nasal congestion occurs when blood vessels inside the nose swell due to inflammation, infection, allergies, or environmental triggers. These sprays act locally in the nasal passages and can provide rapid symptom relief compared to oral medications. Despite widespread … Read more
Victorian disease symptoms refer to the physical and mental signs linked to illnesses that were common during the Victorian era (1837–1901). This period was marked by rapid industrial growth, urban crowding, poor sanitation, limited medical knowledge, and nutritional deficiencies. These conditions created an environment where infectious diseases and chronic deficiency disorders were widespread. Understanding Victorian … Read more
Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. What Is the Rotavirus Vaccine? Rotavirus is a major cause of severe diarrhea, dehydration, and hospital stays in infants. The vaccine is given by mouth, usually in two or three doses depending on the brand. It has an excellent safety record, and serious problems are … Read more
Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Pancreatic cancer is known for hiding in plain sight. Most people do not feel early symptoms, and when signs do show up, they often look like common digestive problems. What finally pushes someone to seek help is usually a pattern of symptoms that do not … Read more
Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Alzheimer’s disease slowly affects memory, thinking, behavior, and the ability to perform daily tasks. The symptoms usually start small and grow over time. Early recognition matters because it allows better planning, treatment, and support for patients and families. What Are Alzheimer’s Disease Symptoms? Alzheimer’s disease … Read more
Intermittent fasting benefits come from when food is eaten rather than what food is eaten. Intermittent fasting (IF) is an eating pattern that alternates between periods of eating and periods of fasting. It does not prescribe specific foods. It defines time windows. Common intermittent fasting methods include: These approaches are studied mainly for metabolic health, … Read more
Current scientific evidence does not prove that eating ramen noodles directly causes cancer. However, frequent consumption may increase indirect cancer risk factors due to high sodium, ultra-processing, possible acrylamide exposure, and poor overall diet quality. Understanding What Ramen Noodles Are Ramen noodles are ultra-processed instant noodles made primarily from: They are designed for long shelf … Read more
Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Quick Summary Pain behind the knee can come from joint issues, tendon injuries, nerve problems, or circulation disorders like a Baker cyst or a blood clot. The right diagnosis depends on the exact location of the pain, swelling, mobility limits, and any recent trauma. Early … Read more
Key Summary Amid the cold and flu season, the Royal Pharmaceutical Society (RPS) has advised the public not to use nasal decongestant sprays for long periods, and called for clear instructions on packages limiting their usage. Using nasal sprays with xylometazoline – or its alternative spelling, oxymetazoline – for longer than a week might lead … Read more
Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Adenovirus is a common but often misunderstood viral infection that affects people of all ages. One of the most frequently asked questions by patients, caregivers, and clinicians is: how long is adenovirus contagious? Understanding the contagious period is critical for infection control, school and workplace … Read more
Nasal spray warnings focus on overuse, rebound congestion, medication interactions, age restrictions, infection risk, and systemic side effects. Improper or prolonged use can worsen nasal symptoms and cause complications. What Are Nasal Sprays? Nasal sprays are medications delivered directly into the nasal passages to treat congestion, allergies, sinus inflammation, infections, or dryness. They act locally … Read more
The term new dietary guidelines 2026 refers to the U.S. federal nutrition guidance in effect during the year 2026. Officially, the United States follows the Dietary Guidelines for Americans (DGA) 2025–2030, issued by the U.S. Department of Health and Human Services (HHS) and the U.S. Department of Agriculture (USDA). These guidelines apply fully to 2026 … Read more