Immune System Archive


How high a fever is too high?

A fever is the immune system's response to an infection or invader. Most fevers drop after people take over-the-counter medications. People should call a doctor if their fever reaches 103° F and go to an emergency room if it reaches 105°.

What are the different types of body fat?

Two important types of fat in the body are white fat and brown fat. White fat is located in the chest, abdomen, and upper legs; too much of it constitutes obesity. Its function is to provide insulation against the cold, store fats derived from food, and continually release small amounts of the fats to be converted into energy. Brown fat is found in small amounts in the neck, shoulders, chest, and abdomen. Its main function is to burn the fat it stores, creating heat that keeps the body warm.

New recommendations for pneumococcal vaccination

In January 2022, the CDC published updated recommendations for vaccinating adults against pneumococcal disease and approved two new pneumococcal conjugate vaccines (PCVs).

Vitamin B6 flies under the radar: Are you getting enough?

Vitamin B6 helps with the body's enzyme reactions, immune system health, brain chemicals, and more, but it doesn't get a lot of attention. The body can't synthesize it, so people need to get it from food, and a recent study found that a surprisingly high percentage of people may be deficient in vitamin B6.

What is alopecia areata and how is it managed?

Hair loss is a common problem for many men and women, but what does it mean to have alopecia? Alopecia areata occurs when the body's immune system attacks hair follicles, resulting in hair loss. AA can affect the scalp, eyebrows, eyelashes, or anywhere hair grows on the body.

Should you take probiotics?

Probiotics can be helpful in some cases, but it's unclear whether they are safe for all older adults.

Should you monitor this chronic inflammation marker?

Increasingly, tests that measure C-reactive protein are marketed to health-conscious consumers as a way of determining if they have chronic inflammation. However, the test is just one piece of evidence and should be interpreted by one’s doctor. Without that expertise, a customer might not understand what the CRP test result means, and as a result might suffer unnecessary anxiety or pursue unnecessary tests. It’s best to talk to one’s doctor before seeking tests that measure CRP levels.

Five hours of weekly exercise may help prevent some cancers

Many cancers might be avoided if people did at least five hours of moderate-intensity exercise per week like brisk walking, biking riding, and water aerobics.

4 immune-boosting strategies that count right now

With colds, flu, and COVID variants circulating, keeping your immune system healthy is even more important. Advertising would have you believe that some supplement or other is the key to protecting yourself from getting sick, but the best strategies to protect yourself involve common sense and simple steps.

Breathing your way to better health

Taking time out of a stressful day to perform simple breathing exercises can reduce chronic stress and prevent the harm it can inflict on the body. Even a few short breathing sessions can make a big difference for many people. Chronic stress, when it goes unchecked, can lead to a host of health problems, including high blood pressure, obesity, anxiety, depression, and reduced immune response.

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