A dermatologist talks: Treating acne and pores in humid Singapore

I’ve already written about skin fundamentals such as treating pigmentation and anti-ageing options, but one of the most common concerns here are acne and oily skin. My patients often say, “My pores are big and my skin is greasy, how do I shrink them and get flawless skin?” First, there is a medical term for such a condition. It is known as hyperseborrhea, and it refers to the excessive production of sebum. Sebum is the body’s own moisturiser, produced in the sebaceous glands in skin. The composition of sebum is a mixture of fats that help to prevent excessive water loss from the skin to the environment, preventing dry skin. In a healthy person, this is regulated and does not cause  problems. When excessive oil production occurs, hyperseborrhea occurs and often presents as excessive shine and a greasy sensation on one’s face, which can be socially embarrassing, as well as having a tendency to break out in acne. Oily skin is not the same as acne, although almost all acne patients have a tendency to oily skin. In order for acne bumps to form, one must first have a genetic tendency to produce inflammation, oil production (driven by hormones) as well as ...

Sometimes there will appear a figure that flies in the face of reason, and challenges everything

Sometimes there will appear a figure that flies in the face of reason, and challenges everything you think you know about a subject. Just such a moment came from [Chris Taylor] at Milton Keynes Makerspace when he characterised a set of LED strips, and the figure in question was that he found an LED strip creates the same amount of heat as its equivalent incandescent bulb. We can hear your coffee hitting the monitor and your reaching for the keyboard to place a suitably pithy comment, because yes, that’s a pretty unbelievable statement. But it’s no less true, albeit that the key to it lies in its details. If you have a 100 W incandescent bulb, 88% of the energy is radiated as light and infra-red, leaving 12 W heating the bulb itself. To get the same light output from an LED meanwhile we’d only need 17 W, of which 11.9 W would be left to heat the LED. Which means that an LED strip can get as hot as an incandescent bulb with equivalent light output, and he’s run some tests to prove it. If you’ve worked with LEDs, you’ll know that they get hot. But to learn that they have the potential to get as hot as their incandescent equivalents is something of a eye-opener, and should demonstra...