Unveiling the Brain's Influence on Our Taste for Salt

Two sets of neurons in the brain determine salt cravings and tolerance levels. A study on mice found that when salt levels are low, a set of neurons in the back of the brain increases the craving for salt, while a different set of neurons in the front of the brain monitors the saltiness of food and water. When salt levels become extremely low, the body sends a signal that overrides the salt-limiting neurons, allowing mice to tolerate the saltiness of sea water. Understanding how the brain processes saltiness could have health implications and help develop strategies to reduce salt intake.