What kind of last name is heart-grate?

Where does the signal for contraction in the heart come from? What should you eat to increase your ldl cholesterol? What is the difference between central sleep apnea and other severe forms of sleep apnea? Did Nixon have dementia? What is an optical system of the eye? My kid has a mole with growing black scab? If a man is drunk at the moment of conception of his chil does the baby get an alcohol or fetal syndrome you asked because you need to know this immediately? What is a latent gift? When do you know you need to go to therapy? How long does treatment for DID last? The blood vessels that exchange substances with the nephron? What is the best place to store grains to reduce the risk of cross-contamination? Is there gluten in Tahini? Can a herniated disc in neck effect walking? What controls your body temperature during metabolism? Could anyone here share their stories as to how they struggled from staying up late to sleeping early? Can marfans syndrome cause seizures? Can Tot'hema be taken during periods? When blood vessels get smaller in diameter it is know as what? Are you considered lucky if you are born seven months premature?