When rats had a part of their brain (SFO) removed, they kept less salt in their bodies during the first few days of eating a very salty diet, meaning that part of the brain might help the body decide how much salt to hold onto.

When rats had a part of their brain (SFO) removed, they kept less salt in their bodies during the first few days of eating a very salty diet, meaning that part of the brain helps control how the body handles extra salt.

Cutting out a small part of the rat’s brain called the SFO didn’t change their blood pressure, even when they ate a lot more or a lot less salt than normal.

Cutting out a small part of the rat's brain called the SFO didn't change their blood pressure, even when they ate a lot more or a lot less salt than normal.

When mice have the PER1 protein removed specifically from their kidneys, they retain more salt when given a high-salt diet and a hormone treatment, which could affect blood pressure regulation. This finding is from the abstract summary - full study details were not available

When people who don’t get high blood pressure from salt eat more or less salt, their kidneys adjust how much salt they pee out—no matter if they’re male or female.