Health Capsules

Sleep trackers and clinical sleep studies serve different purposes in understanding rest, fatigue, and possible sleep disorders. Readers will learn how consumer devices estimate patterns, how laboratory studies measure sleep and support diagnosis, and how to judge when self-tracking is sufficient versus when professional assessment is warranted.

Despite popular marketing, gut microbiome tests lack FDA approval and clinical reliability, making them unsuitable for diagnosing conditions or guiding diet changes. The mainstream hype suggests these tests offer personalized health insights, but experts warn against making lifestyle or medical decisions without professional advice. Following this cautious approach helps avoid ineffective or potentially harmful self-prescribed treatments based on unproven test results.

The gut-brain link is exciting, but whether your microbes cause mood changes or just correlate with them decides how much to trust probiotics. These views differ on demanding strict standardized trials, tightening safety and protocol, and sharpening methods to capture how gut and brain actually talk. Weigh them to judge how confident to be in gut-based treatments.

For decades full-fat dairy was something to avoid, but the case against it is shakier than the label suggests. These arguments differ on reading the evidence, whether biomarkers vindicate whole milk and cheese, whether to judge the whole diet instead of single nutrients, and whether all saturated fats even behave alike. Weigh them to decide how dairy fits your plate.