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.
We also know that a leap year means that where will be a February 29th. This creates the unique situation whereby someone born on February 29th will only have a birthday every 4 years. Often these people celebrate their sudo birthday on February 28th for those other 3 years. The next leap year will be in 2012. The leap year will then occur successively every 4 years so it will follow in 2016, 2020, 2024, and so forth. However, as we can see from the leap years listed below - there are years in which we do not have a leap year. This is as a result of the Gregorian calendar which has us skip a leap year every 100 years to make up for the fact that 11 minutes had to be shaved off the 365.25 year. Leap Year list from 1,900 to 2,400: