Jyfan/insight sleep alarm

[jykfan]

@benejoseph

• When user does not input a date of birth, we store dob automatically as the date account is created. This leads to many adults with "age" of less than 2 years, and inappropriate recommendations
• Now when user has dob == created date, we default age to 35 years (rather than 0).
• Specifically, fix for
• Similar logic issue with sleep deprivation insight @jarred-h. Should increase the number of people who get sleep deprivation insight, may want to monitor.

[benejoseph]

other than the function name, this is great. 👍