A brain imaging study sheds light on how attention becomes more focused under pressure in younger adults but not in older adults, revealing disrupted locus coeruleus influence over frontoparietal attention networks.
Follow the links to learn more:
https://www.nature.com/articles/s41562-018-0344-1
http://www.dailymail.co.uk/sciencetech/article-5701657/Why-harder-concentrate-older.html