There are trillions of tiny organisms living inside your gut right now—and they may be influencing your emotions more than you think. Section 1: What Is the Microbiome? Microbes are tiny living things that are usually too small to see without a microscope. They can be found everywhere on Earth and living inside our bodies. Main Types of Microbes Bacteria: Single-celled organisms with no nucleus that live almost everywhere. Viruses: Tiny infectious agents that need a host cell

Vitamin D is important during the teenage years because it helps the body absorb calcium, which is needed to build strong bones (National Institutes of Health [NIH], Office of Dietary Supplements, 2025). One national study found that about 9% of children and young people ages 1 to 21 were vitamin D deficient, representing about 7.6 million people at the time of the study (Kumar et al., 2009). Adolescence is an important period of bone development. During these years, bones gr

Sources of Noise Pollution Environmental noise comes from several sources, with road traffic being the most common. Cars, buses, trucks, and other vehicles contribute significantly to noise levels, particularly in busy urban areas. Railways are another major source, followed by airports and aircraft. Airport noise affects fewer people overall but can cause considerable disturbance for those living near airports. Industrial activities, such as factories and machinery, are anot

Running shoes are often blamed when a runner develops foot or leg pain. Maybe the shoes feel different than they used to. Maybe a new pair seems to cause blisters. Or perhaps someone has told you that your flat feet, high arches, or running style means you need a specific type of shoe. But the relationship between running shoes and injury is more complicated than that. Research suggests that running injuries have many possible causes, and there is not strong evidence that one

The Surprising Plant Origins of Common Medicines: Roots, Branches, and Pain Relief

The psychological issues among children and adolescents are getting progressively worse. Up to 20% of children and adolescents worldwide are struggling with mental illnesses, but most of them never get the help they need. The disparity is exacerbated by stigma, a lack of child psychiatrists, and restricted access to care, particularly in low- and middle-income nations. With its ability to provide early detection, digital interventions, and individualized care, artificial

Hypertension, or high blood pressure, is a common cardiovascular condition heavily correlated with hearing loss, although the exact mechanism is not fully understood. Early diagnosis of hypertension can help with early testing and management of hearing loss.

Few drugs embody medicine’s double-edged sword as starkly as morphine—a substance capable of silencing the most brutal coughs while threatening to steal the breath it promises to spare.

Medical dramas make being a doctor look exciting, with life-saving surgeries, instant diagnoses, and dramatic personal lives. But if...

Are you a new mom who's worried about what she can and cannot eat? Well, you're in luck. Discover the best foods for a new mom.

K-beauty vs. Western beauty: What’s the difference and which is right for you?

You’ve probably heard people say that green mucus means you have an infection. It’s a common belief that has been passed around for...

Have you ever felt completely fine, only to find out that the person you just hung out with caught a cold from you? Or maybe you’ve...

Introduction You’ve probably heard the myth: “Every 7 years, your body completely renews itself.” Sounds cool, right? But unfortunately,...

Are fruits enough to skip veggies? Nope! Learn why both are essential for a balanced diet and what you're missing by cutting out vegetables.

We’ve all been there—accidentally dropping a piece of food on the floor and wondering if it's still safe to eat. For years, people have...

We've all experienced it—sitting in a quiet room, library, or classroom, trying to hold back a sneeze during an awkward moment when that...

Laughter is probably one of the best feelings. It can brighten even the gloomiest days and foster connections between people, creating a...

Introduction Did you know? The death rate for Alzheimer’s Disease is more than breast and prostate cancer combined. Did you know?...

What exactly is Insulin resistance? Insulin resistance occurs when your body fails to adequately respond to the insulin it produces. The...