Blood Sugar and Brain Fog: The Post-Lunch Slump Explained
Large swings in blood glucose affect alertness and concentration, which is why a heavy carbohydrate lunch is followed by an afternoon s
11 June 2026Read →
How memory, attention, sleep and vascular health actually interact — the science underneath every supplement claim.
Large swings in blood glucose affect alertness and concentration, which is why a heavy carbohydrate lunch is followed by an afternoon s
Mild dehydration — a fluid loss of one to two percent of body weight — measurably affects attention, alertness and short-term memory.
Untreated hearing loss is one of the largest modifiable risk factors identified for cognitive decline, and one of the least discussed.
The gut and brain communicate constantly through the vagus nerve, immune signalling and microbial metabolites.
Sustained stress raises cortisol, and chronically elevated cortisol impairs the hippocampus, the structure central to forming new memor
Aerobic exercise is the intervention with the most consistent evidence for protecting cognition as we age — stronger than any supplemen
Working memory is the small, temporary workspace you hold a phone number in. Long-term memory is the vast store you retrieve a childhoo
Neuroplasticity is the brain's capacity to change its connections in response to experience — it continues throughout life, though the
Acetylcholine is the signalling molecule most closely tied to attention, learning and the formation of new memories.
Normal ageing slows retrieval — the word arrives a beat late. Concerning change interferes with daily function and is usually noticed b
Sleep is when the brain replays and stabilises the day's memories, transferring them from fragile short-term storage to durable long-te
Memory is not one process but a chain of three: attention lets information in, encoding turns it into a storable trace, and retrieval b