Photo: Getty Images
We’re grouchy in the winter … Research has found that people are grumpier on social media in the morning, especially winter mornings. Scientists examined more than 800 million Tweets sent at different times of the day and different times of the year and discovered some trends. Not surprisingly, people are grumpier in the winter months and in the mornings. And, they post more positive things in the spring and summer months, when the days are longer and warmer.