Environmental health Archive

Climate change is causing longer, more intense allergy seasons, with increased amounts of pollen. This might make it harder for people to predict when their allergies might crank up, when to begin preparing for them, and how to discern the difference between allergy symptoms and upper respiratory illness. Strategies to cope include noting daily pollen counts, staying indoors when counts are high, checking with a doctor about new or worsening symptoms, and wearing a mask when outside for more than a few minutes.

When New Year's resolutions aren't working, other strategies can help improve health habits. For example, people can set February goals instead of January goals, focusing on small changes in diet, exercise, or stress management. Another idea is including friends for added motivation and support, or working with an expert such as a personal trainer or dietitian. It might also help to follow eco-friendly habits that improve health, such as driving less and walking or cycling more and adopting a plant-based diet.

A 2024 study found that when air pollution levels decreased during a five-year period in Italy, so did hospitalizations for heart-related emergencies. The results suggest that reducing air pollution could lower the prevalence of heart disease.

As global temperatures continue to soar, extreme heat poses numerous health risks, some of which are visible on our skin. Understanding how heat affects your skin can help you take measures to prevent or ease many skin conditions that are sparked or worsened by high temperatures.

Climate change has made summers hotter, and the struggle to stay cool has led to more cases of heat-related illness. Don't wait until you're overheated to figure out how to cool down; use these ideas to get you started.

Chemical pollutants such as lead, perfluoroalkyl and polyfluoroalkyl substances (also known as PFAS), and pesticides may contribute to heart disease risk. Possible routes of exposure for all three include drinking water and food. Residue and dust from many common items (such as water-resistant clothing and personal care products) may expose people to PFAS. People can limit their exposure by testing and, if needed, filtering their drinking water; choosing PFAS-free products when possible; using non-chemical pest control methods; and choosing organic foods.

Adjusting to new surroundings, such as a new or remodeled home, can affect people's hearing ability. Certain home features absorb sound, making it easier to hear. These include carpeting, paneling, curtains, and upholstered furniture. Other features allow sound to reverberate, making hearing more difficult. These include hardwood floors, cathedral ceilings, and minimalist decor. Hearing aids don't necessarily help, since they magnify all sounds.

People who have or are at risk for cardiovascular disease should be extra cautious when exercising outside when it's hot, humid, and hazy, as they are more vulnerable to the hazards of high temperature and air pollution. To exercise safely during a heat wave, people should avoid being outside during the middle of the day; wear light-colored, lightweight clothing; and be careful to stay hydrated.