In the short term it is regulated by baroreceptors which act via the brain to influence nervous and endocrine systems. Blood pressure that is low due to a disease state is called hypotension, and pressure that is consistently high is hypertension. Both have many causes and may be of sudden onset or of long duration. Long term hypertension is a risk factor for many diseases, including heart disease, stroke and kidney failure.
Decrease your sodium intake. An excessive amount of salt in the body will absorb water and cause you to retain water. Consequently, to avoid water retention, moderate the amount of sodium you eat on a daily basis. Many processed foods are high in sodium, and will cause you to exceed your daily recommended sodium intake.
When too much water collects in the body, it can lead to water intoxication or dangerously low levels of sodium in the blood (hyponatremia). There are two types of overhydration: increased water intake and retaining water.1  Increased water intakeâor drinking more water than the kidneys can get rid of in the urineâcan cause too much water to collect in the body. 2  When the body is unable to get rid of excess water, it is said to be retaining water.owever, overhydrationâor drinking too much waterâis also a potentially deadly condition, one that can throw off the balance between water and sodium in your blood.