Screen Time, Cannabis Risks, and PET Scanning

This week's topics include using CT to help determine brain death, PET scanning for tau in Alzheimer's, screen time trajectories in US youth and mental health, and cannabis and your heart.

Program notes:

0:35 Screen time trajectories in adolescents

1:33 31% had increasing addictive use trajectories

2:31 Females more involved in social media

3:06 Cannabis and CV risk

4:06 Smoking or using other products

5:06 Mechanisms include oxidative stress

6:06 Haven't regulated

6:28 Tau PET imaging in Alzheimer's

7:28 90% of tau positivity concurs with AB

8:30 Will blood test obviate?

9:30 Imaging to detect spread

9:43 CT perfusion for death by neurological criteria

10:43 Validation threshold 98%

11:43 Maybe adding another technique

12:43 End