These include studies of the therapeutic value of CBD for: 1  Treatment of substance use disorders (opioids, alcohol, cannabis, methamphetamine) 2  Attenuation of the cognitive deficits caused by THC. 3  Neuropathic pain due to spinal cord injury.  Mitigating the impact of cannabis use on risk for schizophrenia.
Every fourthyear is a leap year, as a rule of thumb. But that's not the end of the story. A year that is divisible by 100, but not by 400, is not. So 2000 was a leap year under the Gregorian calendar, as was 1600. But 1700, 1800 and 1900 are not leap years.
A year is a leap year if it is divisible by 4, but century years are not leap years unless they are divisible by 400. (So, the years 1700, 1800, and 1900 were not leap years, but the year 2000 was.) Non-leap years begin and end on the same day of the week. Leap years have 366 days, rather than the usual 365. When is the Next Leap Year?