Birthdays always feel like big milestones, but there's something about the transition from your 30s to 40 that feels especially major. The big 4-0 can make you feel both older and wiser.

Meghan is spending her milestone birthday privately with husband Prince Harry and their children Archie, 2, and 2-month-old Lilibet Meghan Markle is waking up to 40th birthday wishes from the ...