As you can see price was trading above the zone for awhile while which makes it strong to buy or sell off of. Price was trading above creating higher highs and lows before forming a chart pattern known as the head and shoulders then a shift in structure occured to creating lower highs and lower lows thus breaking below the zone which makes the sells more valid
Price was trading above the marked zone for awhile making it a strong zone to sell or buy off . As you can see there was a head ad shoulders pattern followed by a shift in structure from higher highs to creating lower highs and lower lows