Differential Diagnosis for Forgetting Things in a 45-year-old Indian Male

Age-related Cognitive Decline: As people age, it's common to experience some degree of cognitive decline, including forgetfulness. Given the patient's age, this is a likely explanation for his symptoms.

Depression: Depression is a common condition that can cause cognitive symptoms, including forgetfulness and difficulty concentrating. Indian males may be at higher risk due to cultural and societal factors.
Anxiety: Anxiety can also cause cognitive symptoms, including forgetfulness and difficulty concentrating. This is a common condition that can be triggered by various factors, including work-related stress.
Sleep Deprivation: Lack of sleep or poor sleep quality can cause cognitive impairment, including forgetfulness. This is a common issue in modern life, especially in urban areas.
Hypothyroidism: Hypothyroidism is a condition where the thyroid gland doesn't produce enough thyroid hormones, which can cause cognitive symptoms, including forgetfulness. This condition is more common in Indians due to iodine deficiency.

Alzheimer's Disease: Although rare in people under 50, early-onset Alzheimer's disease can occur. It's essential to rule out this condition, as it requires prompt treatment and management.
Vitamin B12 Deficiency: Vitamin B12 deficiency can cause cognitive impairment, including forgetfulness. This condition is more common in Indians due to vegetarian diets and malabsorption.
Chronic Traumatic Encephalopathy (CTE): CTE is a condition caused by repeated head trauma, which can cause cognitive symptoms, including forgetfulness. This condition is more common in people who have played contact sports or have a history of head trauma.
Brain Tumor: A brain tumor can cause cognitive symptoms, including forgetfulness. Although rare, it's essential to rule out this condition, as it requires prompt treatment and management.

Frontotemporal Dementia: This is a rare condition that causes cognitive decline, including forgetfulness. It's more common in people under 65 and can be inherited.
Huntington's Disease: This is a rare genetic disorder that causes cognitive decline, including forgetfulness. It's essential to rule out this condition, as it requires prompt treatment and management.
Creutzfeldt-Jakob Disease: This is a rare prion disease that causes cognitive decline, including forgetfulness. It's essential to rule out this condition, as it requires prompt treatment and management.