Why some social media sites are linked to risky sexual behavior in young teens
Peer-Reviewed Publication
Updates every hour. Last Updated: 2-Jan-2026 06:11 ET (2-Jan-2026 11:11 GMT/UTC)
If young teens use social media to learn about sexual health, it is better if they use sites like YouTube rather than ones like Snapchat, a new study shows. Researchers found that middle-schoolers were less likely to be motivated to engage in risky sexual behaviors if they sought information from primarily informational sites rather than ones that are more about interaction with peers.
Depression is often linked to changes in facial expressions. However, the link between mild depression, known as subthreshold depression, and changes in facial expressions remains unclear. Now, researchers have investigated whether subthreshold depression shows changes in facial expressions in Japanese young adults using artificial intelligence. The findings reveal distinct muscle movement patterns related to depressive symptoms which may help detect depression early, paving the way for timely and preventative mental health care.
If AI’s intrinsic risks are real, governmental regulation and ethical frameworks are unlikely to contain them. Drawing on social theory, it highlights myths about the state’s capacity, global enforcement challenges, rapid technological decentralization, and the ambiguity of moral norms. The author presents a skeptical view that “meaning well” does not ensure effective outcomes, cautioning against overreliance on governments and ethics to mitigate advanced AI risks.
Illegitimate tasks refer to duties perceived as unnecessary or unreasonable in relation to one’s professional role. When such tasks accumulate, employees often experience the situation as unfair. Illegitimate tasks are also regarded as stressors that undermine one’s autonomous, or internal, motivation. Conversely, employees who encounter fewer illegitimate tasks are more likely to feel that their work is meaningful or consistent with their values, according to a recent study exploring the associations of illegitimate tasks with work motivation.