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 solar year is the time that it takes the earth to complete one  cycle around the sun. The year is the time taken by earth to  complete a cycle around the sun which takes aâ¦bout 365.25 days.   So, a calendar year is 365 days and 1 quarter. Every Leap Year  (once in 4 years) there is an extra day in February.    A year technically is the time taken for a planet to make one orbit  of the sun. At that rate, an Earth year is shorter than a Mars  year, which is 687 days at a 24 hour day.