The series of bodily changes that occur in the female of most mammals from one period of estrus to another. The estrous cycle usually takes place during a specific period known as the breeding season, which ensures that the young are born at a time when the chance of survival is greatest.
ear-to-ear. It's about smiling. Ear-to-ear smile or grin is when you have a very broad and generous smile. Such a smile when each corner of your mouth is by each of your ears. Explain to me why you don't have an ear-to-ear grin right now.
And laughter really is contagiousâjust hearing laughter primes your brain and readies you to smile and join in the fun. The link between laughter and mental health. Laughter stops distressing emotions. You canât feel anxious, angry, or sad when youâre laughing. Laughter helps you relax and recharge.