How to Raise Your Heartbeat. Studies have shown that just as little as 30 minutes a day of activities that raise your heart rate can have profoundly positive health effects. Also, as you age, a lower heart rate can make you feel cold more easily. In order to combat this, you'll need to partake in some particular daily movements.
Gestation is the carrying of an embryo or fetus inside female viviparous animals. It is typical for mammals, but also occurs for some non-mammals. Mammals during pregnancy can have one or more gestations at the same time (multiple gestations).
Small for gestational age (SGA) Small for gestational age means that a fetus or an infant is smaller or less developed than normal for the baby's gender and gestational age. Gestational age is the age of a fetus or baby that starts on the first day of the mother's last menstrual period.