Essential Tremor

Essential tremor is a neurological disorder that affects about 5% of the world’s population. It is also sometimes referred to as ‘familial tremor’ due to its tendency to run in families. Essential tremor is the most commonly occurring tremor disorder and is often confused with Parkinson’s disease due to the involuntary rhythmic shaking that both…

Polydactyly

Polydactyly affects about 1 in 1,000 individuals around the world. It is a condition where one or more extra fingers or toes are present at birth. Its name is derived from the Greek words for ‘many’ (poly) and ‘digits’ (dactylos). Symptoms There are three different ways in which polydactyly may manifest: Postaxial polydactyly or small…

The ‘X’ Factor: X-linked Inheritance

X-linked inheritance is a less heard / spoken of phenomenon that could give rise to various genetic disorders. In order to understand the bigger picture, it would be useful to first familiarise with a few basics in genetics. (The matter that follows might come across as a little extra, and possibly more technical than most…