3. To sunbathe in a sun deck
For some reason it is considered, that sunburn in a sun deck is less harmful, than solar. Actually, the same ultra-violet UVA-beams are responsible for sunburn in a sun deck all, which cosmeticians name as “beams of ageing” they cause formation of free radicals and promote skin presenilation.
As well as for natural sunburn, any abusing of artificial sunburn is harmful. Artificial sunburn does not exclude danger of change of skin pigmentation, a burn and a long-term cancer of skin. It can also provoke an inflammation of a cornea of an eye and occurrence of a cataract. Cosmeticians recommend visiting a sun deck not more than two times a year per 10 sessions each.
But how to be, if it is desirable to be “chocolate”? The modern cosmetology has created such surprising means, as self tanning means, which structure includes the substances, stimulating development of melanin in and strengthening of its pigmentation.
4. To cut off nail cuticles
Cuticles protect a root of a nail from damages and infections, being a natural barrier to bacteria, doing nails stronger. Therefore it is better not to cut cuticles (not to bring an infection), and to grease with humidifying cream or oil in order to prevent occurrence of agnail (the best oil for cuticles is an oil, containing vitamin E or an extract of a tea tree).
5. To bleach teeth very often
Too frequent bleaching of teeth spoils dental enamel therefore teeth become hypersensitive and starts to be crumbled easily. Such enamel starts to absorb dyes even more strongly. Besides, it is simply useless to bleach teeth too often - you will not manage to make teeth whiter than a maximum level, incorporated in you by the nature (it is considered, that teeth cannot be whiter, than fibers of your eyeballs).
Bleaching in stomatologic clinic can bleach teeth on 8-9 tones, bleaching in house conditions by means of special means - approximately on 4 tones, bleaching by means of tooth-pastes - on 1-2 tones. Bleaching in clinic or by means of special means should be done not more often, than two times a year. It is allowed to use bleaching tooth-pastes 3-5 times a week.