Harvard Health Content API

A quarter of American adults live with a mental health disorder such as anxiety, depression, obsessive-compulsive disorder, or post-traumatic stress disorder. But more than half don’t seek help. Internal and external barriers may stop them from getting the care they need. Internal barriers are emotions or excuses people make to avoid treatment. External barriers include cost or difficulty finding a provider who can meet someone’s individual needs. To push past obstacles, people can investigate less-expensive mental health programs or reframe guilt-inducing thoughts.

Evidence suggests that chewing gum can help people feel more focused and less stressed. Chewing sugar-free versions can hinder cavities. But constant gum-chewing can tire jaw muscles, and xylitol-containing gum can trigger abdominal distress.

The body’s pH level supports a variety of crucial functions. Certain health conditions can create a pH disturbance. People can support a healthy pH by eating a balanced diet featuring fruits, vegetables, whole grains, lean meat, and fish.

Solo-agers are people 50 and older who aren’t married, don’t have children, and live alone. Many of them don’t have people they can count on to help them with household tasks or manage their ongoing care, if needed. While solo aging can offer perks, it can also leave older adults vulnerable to deteriorating mental and physical health. Solo-agers may count on help from siblings, neighbors, friends, community groups, or paid help. They can build their support by setting up a buddy system, staying in regular touch with loved ones, and tapping senior programs.

A 2025 analysis found that tricyclic antidepressants, the anticonvulsants gabapentin (Neurontin) and pregabalin (Lyrica), and serotonin-norepinephrine reuptake inhibitors, such as duloxetine (Cymbalta) were the most effective drug treatments for neuropathic pain.

Radiation from diagnostic tests has the potential to damage tissue in the body, including cell DNA. Rarely, that can cause cell mutations that lead to cancer 10 or 20 years later. The long-term cancer risk from standard x-rays is considered very low; the risk from computed tomography (CT) scans might be higher. If a doctor orders a CT scan for someone who recently had that same type of scan, the patient should ask what the results might show, whether they’ll affect treatment, and whether an alternative test can be substituted.

Several factors increase the risk for complications from COVID-19 or influenza and should prompt someone to request an antiviral medication as soon as possible, even if they have been vaccinated or have had the infections before. The risk factors are age (being 65 or older), an impaired immune system, and underlying conditions (especially heart or lung disease). Pregnant women also are at increased risk for severe influenza and COVID, and should consider taking an antiviral.

Someone with a new diagnosis of diabetes might feel overwhelmed by the many strategies required to help control the disease. It helps to add several experts to the care team. Soon after a diagnosis, it’s a good idea to schedule appointments with a dietitian, an eye doctor, an endocrinologist, and a certified diabetes educator. It’s also helpful to add other experts as needed to the team, such as a physical therapist, a podiatrist, a social worker or an aging life care manager, and a certified health coach.

In a 2025 randomized trial of about 1,000 people (ages 50 or older), followed for four years, those who took 2,000 international units of vitamin D₃ per day showed cellular signs that suggested they were aging more slowly compared with people who did not take the supplement. It’s unclear if this benefit would continue from taking daily pills longer than four years. Scientists do know that taking vitamin D₃ supplements is important for people with osteoporosis or with vitamin D deficiency (as determined by a blood test).

In May 2025, the FDA approved the first blood test to detect the early stages of Alzheimer’s disease. The test looks for several proteins associated with Alzheimer’s disease. About 80% of the time, the blood test is either highly positive or highly negative, a result that’s accurate more than 90% of the time. Doctors expect that the test will soon be covered by insurance. If that happens, the test will become the standard of care for people ages 55 and older with Alzheimer’s signs or symptoms.