Cognitive and memory disorders encompass a range of conditions that impair the ability to process information, recall memories, and function independently in daily life. Alzheimer's disease, dementia, and mild cognitive impairment are among the most common disorders in this category, often affecting older adults. Research is focused on understanding the underlying mechanisms of these disorders, including the role of neurodegeneration, protein accumulation, and synaptic dysfunction. Advances in neuroimaging and biomarker identification are enhancing early detection and improving diagnostic accuracy. In addition to pharmacological treatments aimed at alleviating symptoms, non-pharmacological interventions, such as cognitive rehabilitation and lifestyle changes, are gaining recognition for their potential to improve cognitive function and slow disease progression. Ongoing studies aim to identify new therapies and preventive strategies that could offer better outcomes for individuals living with cognitive and memory disorders.