One of the simplest procedures, with a relatively short recovery time, is called an exostectomy, in which thebump on thehead of the first metatarsal is thinned or shaved off with a surgical saw.
If you slip in a mud puddle, destroying your iPhone (along with any locally stored encryption keys) and forgetting your passwords as a result of thebump on thehead, can you still recover your data?
It had been thought that new brain cells grew only in young children, and that thereafter every bump on thehead or glass of wine led to a loss of intelligence.