Final answer:
The base area can lighten faster when using a midstrand-to-ends then base technique because the heat from the scalp accelerates the lightening process at the base, leading to a quicker and lighter result than the ends.
Step-by-step explanation:
The technique referred to in the question seems to be related to hair lightening and coloring in cosmetology. Applying the lightening product to the midstrand-to-ends before the base can cause the base area to lighten faster because of the heat generated from the scalp. The natural body heat from the head makes the base react quicker with the lightening agent. When applying the product to the ends before the scalp, you are allowing a more controlled lifting process since the midstrand and ends are farther from the scalp and thus less subject to this heat acceleration. Therefore, when you eventually apply the product at the base, the reaction time is quicker, getting to a lighter shade faster than the ends.