"Forty isn't the end of youth—it's the beginning of being good at being you," Brittany Allyn, 39, told Newsweek as she looks forward to thriving in her forties.

5-Year U.S. Treasury Note Continuous Contract $108.500 0.055 0.05% 10-Year U.S. Treasury Note Continuous Contract $111.391 0.172 0.15% ...

Gilead Sciences Inc. $101.80-4.35-4.10% ...