Lyme disease is a bacterial illness that is spread by tick bites. Lyme disease can affect the skin, joints, heart, and the nervous system. Lyme disease occurs in phases, with the early phase beginning at the site of the tick bite with an expanding ring of redness.
When Do Not Disturb is on, a crescent moon, or half-moon, icon will appear in the status bar. There are two ways to turn Do Not Disturb on or off: 1  set a schedule.2  Swipe up from the bottom of the screen to open Control Center. 3  Tap the crescent moon.hen Do Not Disturb is on, a crescent moon, or half-moon, icon will appear in the status bar. There are two ways to turn Do Not Disturb on or off: 1  set a schedule.
One half of the moon is always illuminated by the sun. But here on Earth, we can't always see the half of the moon that's lit up. What we call the phases of the moon represent the different fractions of the moon's lighted half that we can see as the moon circles the Earth. [See this infographic on Moon Phases] When the moon and the sun are on opposite sides of the Earth, we perceive the moon as full.