Digestive Health Archive

Scientists wonder if gut microbes might influence behavior in animals, including humans. Some studies suggest a link. For example, a 2022 study suggested that gut microbes can influence an animal's motivation to exercise. Scientists speculate that the same might be true in humans. Other studies have found that a parasite called Toxoplasma gondii is tied to risky behavior in lab mice and risk-taking behaviors in humans. Scientists now even consider it conceivable that gut microbes might influence things like human intelligence, attitudes, empathy, and more, although the idea has yet to be proved.

Symptoms of food-related illness can show up hours or even days after ingesting a harmful microbe or toxin. Symptoms of food-related illness might include intense nausea, vomiting, stomach cramps, diarrhea, or possibly a low-grade fever (below 101° F). Someone with food-related illness should rest as much as possible, stay hydrated, and avoid sugary drinks or alcohol. A person who develops a high fever, bloody stool, severe abdominal pain, or severe dehydration should go to the emergency room.

The increasing size and visibility of the transgender population has implications for public health. Hormone treatment given to transgender women lowers the overall risk of prostate cancer, but the risk of a trans woman developing the disease is not zero.

Some people who have been infected with the virus that causes COVID-19  have experienced lingering effects like low energy and brain fog. Could gastrointestinal problems be another aftereffect of the virus?

Cervical cancer is curable when caught early through routine screening, so research showing a surprising rise in advanced cancer cases in some groups is worrisome. Two Harvard experts share insights about the research and advice on how people can best protect themselves.

Everyone is born with the blood vessels that underlie hemorrhoids, but they may become problematic when they enlarge. Half of people have symptoms by age 50 that include pain, itching, swelling, and bleeding. Home remedies such as pain relievers, topical creams and ointments, sitz baths, and cold compresses don't eradicate hemorrhoids. In-office procedures can cut off blood supply to internal hemorrhoids, allowing them to fall off. Surgery is the only definitive treatment option for external hemorrhoids visible at the anus.

The gut is home to trillions of microbes, collectively known as the gut microbiota, which help with digestion, manufacture certain nutrients, and release various substances that have wide-ranging health effects, including on cardiovascular health. As diet plays a significant role in the composition of the gut microbiota, people's diet can indirectly affect heart health. Following a plant-based diet that emphasizes less red meat and more fiber can support the gut and its heart-healthy benefits.

Side effects from both older and newer cancer therapies can affect the heart and blood vessels, possibly causing serious, sometimes life-threatening complications. People diagnosed with any type of cancer should ask their doctor whether their planned treatment might lead to cardiovascular problems. Those ages 65 and older and anyone with risk factors for heart disease (such as high blood pressure or diabetes) may want to request a referral to a cardio-oncologist. These specialists focus on preventing and managing cardiovascular problems in people who are undergoing (or have completed) treatment for cancer.

It's normal to accumulate and release gas; in fact, the average person releases two liters of gas per day. Certain foods can increase gas production since they take longer to digest.

Drinking about one cup of prune juice daily may help relieve chronic constipation, according to a 2022 study.