Located in southeastern New Mexico, Carlsbad Caverns lie beneath the Earth's surface and were formed when limestone was dissolved by sulfuric acid during the last ice age.
There are three types of rate control medications: Beta Blockers, which slow the heart rate and relax the blood vessels. Examples include Atenolol (TenorminÂ®), Carvedilol (Coregâ¢), Metoprolol (Toprol XLâ¢, LopressorÂ®), and Sotalol (BetapaceÂ®)
Disease â illness places pressure on the body, leading to an increased heart rate. Drugs â depending on the drug, it can speed up or slow down the heart rate. Body Temperature â cold will initially raise the pulse rate, before slowing dramatically. Fever (pyrexia) will cause an increase in pulse rate.