— by Mary Cooke, Ph.D.A large study finds a dramatic increase in the number of adults in the United States reporting symptoms of depression during the COVID-19 pandemic.All data and statistics are based on publicly available data at the time of publication. Some information may be out of date. Visit our for the most recent information on the COVID-19 pandemic.The number of adults experiencing in the U.S. has tripled, according to a major study. Researchers estimate that more than 1 in 4 U.S. adults now report experiencing symptoms of depression.Before the pandemic, 8.5% of U.S. adults...…— by Mary Cooke, Ph.D.A large study finds a dramatic increase in the number of adults in the United States reporting symptoms of depression during the COVID-19 pandemic.All data and statistics are based on publicly available data at the time of publication. Some information may be out of date. Visit our for the most recent information on the COVID-19 pandemic.The number of adults experiencing in the U.S. has tripled, according to a major study. Researchers estimate that more than 1 in 4 U.S. adults now report experiencing symptoms of depression.Before the pandemic, 8.5% of U.S. adults...WW…

In a about how our ancestral needs impact our modern feelings, researchers uncovered something that will surprise few among the highly intelligent. While most people are happier when they’re surrounded by friends, smart people are happier when they’re not.The researchers, Norman P. Li and Satoshi Kanazawa, of the Singapore Management University, Singapore and the London School of Economics and Political Science, UK, respectively, were investigating the “savanna theory” of happiness.The savanna theory — also called the “evolutionary legacy hypothesis” and the “mismatch hypothesis” — posits...…In a about how our ancestral needs impact our modern feelings, researchers uncovered something that will surprise few among the highly intelligent. While most people are happier when they’re surrounded by friends, smart people are happier when they’re not.The researchers, Norman P. Li and Satoshi Kanazawa, of the Singapore Management University, Singapore and the London School of Economics and Political Science, UK, respectively, were investigating the “savanna theory” of happiness.The savanna theory — also called the “evolutionary legacy hypothesis” and the “mismatch hypothesis” — posits...WW…

Key Takeaways In the life-or-death scramble to fertilize an egg, not all sperm are alike. A new study of mice by researchers from the Max Planck Institute for Molecular Genetics (MPIMG) in Berlin identifies a genetic factor called “,” whose tag-team act with the protein RAC1 helps a spermatozoan speed straight to the prize.The study is published in .The researchers conducted experiments with mouse sperm to learn more about the properties of the t-haplotype, a group of genetic alleles that are known to appear on Chromosome 17 of mice.Comparing the movement of mouse sperm with the t-haplotype...…Key Takeaways In the life-or-death scramble to fertilize an egg, not all sperm are alike. A new study of mice by researchers from the Max Planck Institute for Molecular Genetics (MPIMG) in Berlin identifies a genetic factor called “,” whose tag-team act with the protein RAC1 helps a spermatozoan speed straight to the prize.The study is published in .The researchers conducted experiments with mouse sperm to learn more about the properties of the t-haplotype, a group of genetic alleles that are known to appear on Chromosome 17 of mice.Comparing the movement of mouse sperm with the t-haplotype...WW…