You may notice more aches and pains in your joints as you age. Maybe it’s harder than it used to be to recover from a hard workout. Maybe you’ve noticed some cracking or clicking in your joints or tenderness in your hands and wrists. As we grow older, the wear and tear on our joints can start to take its toll on the body. While it’s common, it can be a painful sign of aging.What Is Arthritis?(Credit: Gorodenkoff/Shutterstock)While there are many forms of arthritis, generally speaking, it� ...read more

Spring, summer, fall and winter – the seasons on Earth change every few months, around the same time every year. It’s easy to take this cycle for granted here on Earth, but not every planet has a regular change in seasons. So why does Earth have regular seasons when other planets don’t?I’m an astrophysicist who studies the movement of planets and the causes of seasons. Throughout my research, I’ve found that Earth’s regular pattern of seasons is unique. The rotational axis that Ear ...read more

Within a limestone cave system in Richards Spur, Oklahoma, paleontologists uncovered several detailed casts of the skin of an ancient animal. The skin resembles a crocodile hide's pattern and texture, with its detail so well-preserved that individual scales pop along the various casts. The skin may belong to one animal or several different species.They are the oldest example of an outer layer of skin for animals found in terrestrial areas, like reptiles, birds, and mammals. A cast of this skin t ...read more

A head of lettuce sealed in plastic. A chicken tender from the hot bar at the local grocery. A bowl of cereal. An oyster served on a bed of ice at a fancy seafood bar. Which of these foods can give you food poisoning?Most people might guess the oyster, but the answer is that any of these foods — even the cooked and packaged ones — can carry foodborne illness.Food contamination can lead to illnesses that are uncomfortable or painful. For the very young, elderly, or people with compromised he ...read more

Taking your dog on a walk or tossing around your cat’s favorite toy may seem like a uniquely modern activity. But humans have lived alongside animals for a long time — and have loved them for almost as long. In fact, it was as many as 40,000 years ago that the first animals began to be tamed and domesticated through their interactions with our ancient ancestors, transforming from wild beasts into beloved friends and, in some instances, family.But a domesticated animal and an adored pet aren� ...read more

A new look at the skull of a tiny extinct mammal has revealed to researchers that it did not belong to the primate order as previously thought, reversing a decades-long notion about the identity of this elusive mammalian family, known as “picrodontids.” Mouse-sized picrodontids, living several million years after the extinction of dinosaurs, were placental mammals that likely lived on a diet of fruit, nectar, and pollen. Until now, they were envisioned as primates because of their teeth, wh ...read more

If the buzz surrounding a medication could elevate it to celebrity status, then Zepbound is reaching Taylor Swift rank.Zepbound is the newest addition to the weight loss drug arena. In November 2023, it joined the list of obesity-fighting drugs – administered as an injection – to be approved by the U.S. Food and Drug Administration.The key to Zepbound’s weight loss potential is its active ingredient, tirzepatide. This is the same active ingredient found in the drug Mounjaro, which is ...read more

Not all medicines are meant to be taken with food. In fact, some medicines work better if you take them on an empty stomach. It’s all rather complicated, but it’s important to get it right. Is It Bad to Take Pills On an Empty Stomach?Some medications, including NSAIDs, corticosteroids, certain antibiotics, and medicines that lower blood sugar, need to be taken with food for various reasons.NSAIDsOne reason for taking medications with food is to protect the stomach. Some drugs, such as NSAID ...read more

Supernovas are such massive violent explosions that they can create and change the very nature of elements, scattering them into the universe to be absorbed by new planets, stars, and even life itself.That all sounds great — unless it happens in your cosmic backyard. If our own Sun were to go supernova, it would certainly take Earth along with it.But could our Sun ever go supernova? The easy answer is no, because it lacks either of the two main conditions that can cause a supernova.“Our Sun ...read more

Shakespeare said, “A rose by any other name would smell as sweet,” however, he had probably never heard of a fried egg jellyfish or a penis snake. Whether it’s the depths of the sea, the rivers of Brazil, or the trees of New Zealand, there are animals abound with frightening, silly, and downright unusual names. Of all the species surviving and thriving on our great planet, here are six animals with strange names.1. Pink Fairy Armadillo (Chlamyphorus truncatus)[embedded content]Pink fairy a ...read more