Ritsuko Kawai

Articles by Ritsuko Kawai

Even Mild Sleep Deprivation May Lead to Weight Gain - WIRED

Health July 22, 2026

Many studies examining the link between sleep deprivation and obesity have focused on severe sleep deprivation, such as restricting participants sleep to about four hours a night. These studies suggeοΏ½...

Fish Oil Supplements May Not Help Stave Off Dementia After All - WIRED

Health July 6, 2026

Docosahexaenoic acid (DHA), an omega-3 fatty acid found in abundance in oily fish such as mackerel and sardines, is thought to improve cognitive function by supporting connections between brain cellsοΏ½...

Food Preservatives May Increase the Risk of High Blood Pressure and Cardiovascular Disease - WIRED

Health July 5, 2026

Looking at theingredient labels on foods lining supermarket shelves, it's common to see names such as potassium sorbate, citric acid, and L-ascorbic acid (vitamin C). These substances are food additiοΏ½...

Here's How Long You Should Walk Every Day to Prevent Back Pain - WIRED

Health January 3, 2026

If back pain can be reliably prevented, not only will quality of life be improved, but it will also directly lead to a reduction in health care costs for society as a whole. According to the researchοΏ½...

What Is the β€˜Super Flu’ That Is Spreading in Europe and the United States? - wired.com

Health January 3, 2026

The spread of influenza became more severe this fall, particularly in the United States and the United Kingdom. The US Centers for Disease Control and Prevention has designated the 2024-25 flu seasonοΏ½...