Feeling warmer or colder than usual can sometimes be easy to dismiss as personal preference. However, a persistent change in temperature tolerance may provide useful information about how the body is regulating itself. The body’s ability to manage temperature is influenced by the brain, nervous system, circulation, metabolism, and hormones. When these systems are working steadily, the body usually adapts to everyday changes in the environment. If changes in temperature tolera

Bones may seem solid and unchanging, but they are living tissue that is constantly renewed. Calcium is one of the key minerals involved in this process and plays an important role in supporting bone health. Most of the body’s calcium is stored in the bones and teeth. A smaller amount circulates in the blood, where it supports muscle contraction, nerve signalling, and heart rhythm. When blood calcium levels are low, the body may draw calcium from bone stores to maintain balanc