Table 2.

Research variables in the pre-test and post-test presented

Groups	Stages	Mean±SD
		BDNF	Depression	Anxiety	Stress	Craving
Group A *	Pre-test	6.08±4.11	28.20±8.66	24.60±7.77	30.80±6.94	68.80±31.19
	Post-test	6.63±5.39	14.60±8.94	9.60±6.97	17.20±11.40	14.20±10.89
Group B **	Pre-test	5.88±4.22	29.45±6.99	24.73±8.86	31.82±8.07	75.73±26.06
	Post-test	7.62±5.48	17.09±9.48	11.82±7.40	20±7.74	28.27±18.69
Group C ***	Pre-test	2.89±0.89	26.20±7.51	24±7.95	31.60±5.06	75.70±25.59
	Post-test	2.37±0.87	26.80±9.94	23.20±8.65	29.60±7.58	63.30±29.19

^*Anodal left/cathodal right;

^**Anodal right/cathodal left;

^***Sham tDCS

BDNF: Brain-Derived Neurotrophic Factor