Smoke, shaded and tipped are all forms of silver-restriction colouration. A colour inhibitor gene restricts the colour to the hair tip while the shaft is either white/ivory (silver series) or golden (golden series).
Your health matters to you. You eat the right things. You work out regularly. You get the right amount of sleep. But when it comes to working out and sleeping, it can be hard to know if sleeping right after a workout provides benefits or hurts your health. If you have insomnia, a disorder that prevents you from achieving adequate sleep, working out before you go to bed might encourage sleepiness.
But while it might not be possible to train yourself to sleep less, researchers working with the military have found that you can bank sleep beforehand if you plan well in advance. At the Walter Reed Army Institute of Research they had people go to bed a couple of hours earlier than usual every night for a week.