The brain is a complex network of structures that work in harmony to control the many vital functions of the body and process information from the internal and outside environment. The vast majority of these functions are reflex actions that occur automatically and in harmony with other parts of the brain and the body.

As your torso, shoulders, elbows and wrists work together to compensate for a hurt foot or leg, you may begin to experience arm pain. This is especially the case if you're using your crutches improperly. You can improve your overall experience by adopting a few pain-reducing basics of crutch operation.

Bacteria are the oldest and most abundant life form on Earth. These microscopic, single-celled organisms live in all environments -- including in and on the human body. A study published in May 2016 in the "Proceedings of the National Academy of Sciences of the U.S.A."

Pseudoephedrine is a decongestant medication sold over the counter (such as in Sudafed). It is also found as a component in some prescription medications. Pseudoephedrine is available as a tablet, chewable tablet, controlled-release tablet, capsule, syrup, suspension and liquid and as drops.

The brain is the primary controller of respiratory rate. It receives input from sensors that detect oxygen and carbon dioxide levels in the blood. Blood pH -- a reflection of its relative acidity or alkalinity -- also influences respiratory rate.

If you’re suffering from addiction, cravings or unwanted habits, acupressure using ear seeds might be for you. In this form of traditional Chinese medicine, or TCM, a practitioner places the tiny seeds of the vaccaria plant on key points on the ear and tapes them in place.

When you go to the doctor, she checks your heart rate by feeling your pulse. With each beat of the heart, a wave of blood is pushed from the heart into the circulation. These waves can be felt as pulsations in arteries close to the skin surface, such as those in the wrist and neck.

The pelvis is the bony structure of the hips, specialized to support the spine bones and to protect the abdominal organs. The pelvis consists of the three bones that make up the hips; the sacrum, a fusion of five separate sacral vertebrae; and the coccyx or tailbone, a fusion of four small vertebrae.

You either use it or lose it, esp when your arm is in a cast. If you break or sprain your arm and need a cast, chances are your muscles will get a bit weaker. Fret not though -- through activity, you can get your arm back in shape. So, let your arm heal in the cast then work on getting it back in use.

Orange juice is known for its vitamin C and healthy benefits, but not for a sore throat. Citrus juices may burn the tender membranes.

The primary function of the heart is to pump oxygenated blood throughout the human body as part of the circulatory system. When a person exercises, the heart rate, otherwise known as the pulse, will increase rapidly with the output of energy.

The typical human skeleton consists of 206 bones in adults. More bones are present at birth, which gradually fuse together as the body matures. The skeleton is divided into two parts. The axial skeleton includes the bones of the skull, face and spine along with the ribs and breastbone.