e.g. mhealth
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Impact of Internet Usage on Depression Among Older Adults: Comprehensive Study
We refer to this mechanism as the “physical exercise effect.” Based on this, hypothesis 2 is proposed.
The current high population mobility in China often leaves adult children unable to care for their older parents due to work or study commitments, resulting in a shift in social roles and interpersonal relationships for older adults upon retirement. This situation limits their access to information and deepens their sense of social isolation, impacting their psychological and mental health [21].
J Med Internet Res 2025;27:e65399
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In addition, a characteristic of the acquired immune response is its ability to generate “immunological memory,” the mechanism through which an organism develops a faster and more effective response against a subsequent exposure to the same infectious agent. The main actors and effector cells of acquired immunity are CD4+ T helper (Th) and CD8+ T cytotoxic lymphocytes, which are responsible for cellular immunity, and B lymphocytes, which are responsible for humoral immunity.
JMIR Res Protoc 2022;11(1):e29892
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