CBSE Class 12 chemistry exam 2026: Expert shares tips and tricks for better preparation

CBSE Class 12 Chemistry Exam 2026 to be held on February 28, 2026. PGT Chemistry shares tips and tricks to be included in ...
Science Daily

Growing 'mortality gap' detected between Democratic and Republican counties

Researchers examined mortality rates and federal and state election data for all counties in the U.S. from 2001 to 2019. The team found what they call a 'mortality gap' -- a widening difference ...

Top 50 CBSE class 12 chemistry MCQs with answers for high score in pre board exam 2026

Top 50 CBSE Class 12 Chemistry MCQs with Answers: CBSE Class 12 Chemistry is a crucial subject that requires strong conceptual clarity and regular practice to score well in the board examinations. To ...
BMJ

Effectiveness of exercise for improving cognition, memory and executive function: a systematic umbrella review and meta-meta-analysis

Objective To evaluate systematic reviews of randomised controlled trials (RCTs) on the effects of exercise on general cognition, memory and executive function across all populations and ages. Methods ...