From daily habits to nutrition and sleep, explore informational guides on living a healthier life — backed by research and written for real people.
If you have sleep apnea and use a CPAP machine, you have likely seen a number on your device’s screen or in your sleep report. That number is your AHI, which stands for Apnea-Hypopnea Index. An AHI of 0.7 events per hour means that on average, you experienced less than one breathing interruption per hour … Read more
Cold sores on your lips are caused by the herpes simplex virus type 1, or HSV-1. This virus spreads through direct contact, like kissing or sharing a drink. Once the virus enters your body, it stays there for life, hiding in nerve cells near your cheekbone. Most people are exposed to HSV-1 as children, but … Read more
Dark chocolate is good for you because it is packed with flavanols, which are natural compounds that improve blood flow, lower blood pressure, and protect your cells from damage. Unlike milk chocolate, dark chocolate has a much higher cocoa content and far less sugar, which means you get the benefits without the downsides of processed … Read more
You might feel a fluttering sensation in your lower abdomen in early pregnancy, but it is not the same as romantic “butterflies.” This feeling is often described as light tapping, gas bubbles, or a subtle swishing motion. It typically happens around weeks 6 to 12 and is linked to the uterus stretching and increased blood … Read more
Swimmer’s ear hurts. A lot. The quickest way to heal it is with prescription ear drops that kill the bacteria or fungus causing the infection. These drops, combined with keeping the ear dry and managing pain with over-the-counter medication, usually clear the infection in 7 to 10 days. Most people feel much better within 48 … Read more
Paradoxical overflow diarrhea is not actually diarrhea. It is liquid stool leaking around a hard blockage deep in your colon. The fastest relief comes from clearing that blockage first. You cannot stop the leaking until you fix the constipation causing it. This means you need to treat the impaction before anything else. Do not take … Read more
Yes, you can ingest baking soda, but only in very small amounts and for specific, short-term purposes. Drinking baking soda mixed with water is an old home remedy for heartburn, and some athletes use it as a performance booster. However, it is not something you should take regularly or without understanding the risks. Baking soda … Read more
Bacillus coagulans is a unique type of probiotic because it forms spores. Most probiotics are fragile and die in stomach acid. Bacillus coagulans survives the stomach by turning into a dormant spore, then reactivates in the intestines. This spore-forming ability is why it works differently than common probiotics like Lactobacillus or Bifidobacterium. What Is Bacillus … Read more
A dry cough is a cough that brings up no mucus or phlegm. It often feels like a tickle or scratch in the back of the throat that will not go away. The most common causes are post-nasal drip from allergies, asthma, acid reflux, and viral infections like the common cold or COVID-19. Environmental irritants … Read more
If you have ever felt a small lump under your skin and wondered “are lymph nodes hard?” the short answer is: they can be, but it depends on what is going on in your body. Normal lymph nodes usually feel soft and rubbery, like a pea or a small bean you can move around slightly … Read more