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A brain mechanism may explain why approximately 40% of people with hypertension continue to have high blood pressure despite taking medication. The discovery reveals potential targets for new treatments. Researchers at the University of São Paulo (USP) in Brazil have demonstrated that changes in breathing patterns, especially strong abdominal muscle contractions during exhalation, can trigger hypertension. Using animal models (mice), the scientists discovered that neurons in the [...]

Chocolate produced in the Amazon is internationally recognized for its unique flavor. A study by researchers at São Paulo State University (UNESP) in Brazil showed that it could be even more valuable. The analysis indicates that post-harvest practices such as fermenting the beans from the fruit, combined with the appropriate choice of cultivar, can improve the nutritional quality and flavor of the chocolate, thereby expanding the market potential of the product. "Unlike soybeans, corn, [...]

The Cerrado savanna occupies about 26% of Brazil and is home to more than 12,000 plant species and diverse animal life. It’s also speckled with groundwater-fed wetlands that serve as the headwaters for two-thirds of Brazil’s major waterways, including the Amazon River, making it not only a biodiversity hot spot but also a critical ecosystem to preserve water security in the region.  This savanna’s wetlands also have another superpower: storing carbon in their [...]

A brain mechanism may explain why approximately 40% of people with hypertension continue to have high blood pressure despite taking medication. The discovery reveals potential targets for new treatments.  Researchers at the University of São Paulo (USP) in Brazil have demonstrated that changes in breathing patterns, especially strong abdominal muscle contractions during exhalation, can trigger hypertension.  Using animal models (mice), the scientists discovered that neurons in the [...]

For many years, doctors and scientists have known that regular physical activity helps people stay healthy. Exercise can strengthen the heart, improve muscle power, and help control weight. It can also reduce the risk of diseases such as diabetes and heart disease. However, scientists are now discovering that the benefits of exercise go even deeper. A new study shows that long‑term endurance exercise may also improve how the immune system works, especially in older adults. The research [...]

RIVERSIDE, Calif. -- A global analysis of more than 2,300 seawater samples from more than 20 field studies around the globe indicates that human-made chemicals make up a significant portion of organic matter in coastal oceans. The international study, led by biochemists Jarmo Kalinski and Daniel Petras at the University of California, Riverside, analyzed seawater samples collected over a decade from coastal regions from the Pacific, Atlantic, and Indian Oceans. Reported in Nature [...]

New research reveals human-made organic chemicals (xenobiotics) make up a significant portion of dissolved organic matter in coastal oceans. The study published in Nature Geoscience combined and analysed 21 public mass spectrometry datasets containing information on dissolved organic molecules present in more than 2,300 seawater samples. The samples were collected from coastal and open ocean environments across the central and eastern Pacific, Indian and North Atlantic oceans. Common [...]

Chronic obstructive pulmonary disease, commonly called COPD, is a long-term lung condition that makes breathing difficult. It usually develops after many years of exposure to harmful particles, especially cigarette smoke, air pollution, or workplace dust and chemicals. People with COPD often experience shortness of breath, coughing, and fatigue. The disease can slowly limit a person’s ability to perform everyday activities such as walking, climbing stairs, or even getting [...]

Chronic obstructive pulmonary disease (COPD) is known for causing breathing difficulties and limiting everyday activities. Obstructive sleep apnea syndrome (OSAS), on the other hand, is usually associated with loud snoring and daytime sleepiness. However, a study published in the journal Scientific Reports shows that having both conditions has an even more profound impact on patients' muscle strength and quality. "Although it's generally associated only with lung function, [...]