by Allison Meier on. Sharpest ever view of the Andromeda (courtesy NASA/ESA Hubble Space Telescope). The NASA/ESA Hubble Space Telescope has released the largest ever image of the Andromeda galaxy, opening up 100 million stars and star clusters to public exploration. Itâs also the sharpest view of Andromeda, the closest galaxy thatâs a spiral like our own Milky Way, ever taken.
Dizziness or light-headedness when standing up occurs as a result of abnormal blood pressure regulation. Normally, when people stand, gravity causes blood to pool in the veins of the legs and trunk. This pooling lowers the blood pressure and the amount of blood the heart pumps to the brain. Low blood flow to the brain causes the dizziness and other symptoms.
Sit or lie down. Dizziness or light-headedness usually hits when you are standing up or moving around. At the first signs of dizziness or light-headedness, sit or lie down immediately. This will usually help to relieve the spinning sensation and is safer in the event that you fall.. Move slowly. If you are prone to dizziness, it is important not to make any sudden movements, as moving too quickly can wreak havoc on your blood pressure. You should move slowly and deliberately when sitting or standing up, holding on to a stable surface such as a hand railing where possible.