Emon Mia

1 Introduction AD is the most common cause of dementia, accounting for 60%–80% of all dementia cases worldwide (Rayathala and Kumar 2022). It is a progressive neurodegenerative disorder characterized by memory impairment, cognitive decline, behavioral disturbances, and ultimately, loss of independence (Sohrabi and Weinborn 2019). AD often overlaps with other neurological disorders, in both symptoms and underlying mechanisms.

Epigallocatechin gallate (EGCG), a major polyphenol found in green tea, has emerged as a promising candidate due to its diverse pharmacological properties, particularly its role in modulating reactive oxygen species (ROS). The objective of this review was to investigate the anticancer activity of EGCG through ROS generation, focusing on its mechanism of action across various cancer types.

1 Introduction Insomnia, which means difficulty with sleep duration, initiation, quality, or consolidation despite passable sleep opportunities, is an obvious problem in the present 24-h society (Pagel et al. 2018; Bhuia et al. 2024).