Tag: science & technology

During sleep, the intervertebral discs in your spine rehydrate and expand, making you slightly taller. Throughout the day, gravity compresses these discs, causing you to lose that height. The 8mm figure is reasonable.

Scurvy is caused by severe vitamin C deficiency, resulting in symptoms like bleeding gums, weak connective tissue, and poor wound healing. Cirrhosis is from liver damage, osteoarthritis is joint degeneration, and hemophilia is genetic.

Koch's third postulate states that the pathogen must be isolated from a diseased host and grown in pure culture, then when introduced into a healthy host, it must cause the same disease. This establishes the microbe as the causative agent.

Bone marrow for SCID gene therapy and transplants is typically harvested from the iliac crest of the hip bone, as it contains abundant marrow and is easily accessible. The procedure involves extracting stem cells for genetic modification.

Alzheimer's disease IS a neurological disorder - it's a progressive neurodegenerative condition that affects the brain, causing memory loss, cognitive decline, and behavioral changes. The statement claims it is NOT neurological, which is false.

The belly button (navel) is located on the stomach/abdomen area. It is the scar from where the umbilical cord was attached. The chest is above, the nose is on the face, and a T-shirt is clothing, not a body part.

Fingernails and toenails are primarily composed of a tough protective protein called keratin - the same protein found in hair and the outer layer of skin. Keratin provides nails with their strength and durability.

The cerebrum is the largest part of the human brain, making up about 85% of the brain's weight. It is responsible for higher cognitive functions including thought, memory, reasoning, language, and sensory processing. The cerebellum coordinates movement, while the medulla controls vital functions like breathing and heart rate.

As we age, scalp hair typically greys first due to melanocyte depletion. Eyelashes are among the last hairs to lose pigment, often retaining their color longer than head hair, eyebrows, or body hair. This pattern occurs because hair follicles in different areas of the body have different rates of melanin production and are affected by aging at different times.