In 2007, researchers at the University of CaliforniaâDavis determined that our Solar System was fully formed at 4.568 billion years ago. They did this by determining the age of stony materials from the asteroid belt.
When to see a doctor. See your doctor immediately if you experience the signs and symptoms of migraine with aura, such as temporary vision loss or floating spots or zigzag lines in your field of vision. Your doctor will need to rule out more-serious conditions, such as a stroke or retinal tear.
Another main cause of lip lines is thinning skin. As you age, your skin tends to become thinner and more likely to become creased with use. All facial lines, including lip lines, are more visible as skin becomes thinner. Aside from giving up smoking, it sounds like there's little you can do to avoid lip lines.